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Local display function fails with HDMI in moOde 7.0.1 - Printable Version

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+--- Thread: Local display function fails with HDMI in moOde 7.0.1 (/showthread.php?tid=3331)

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RE: Local display function fails with HDMI in moOde 7.0.1 - new_bloke - 04-15-2021

Hi,

I'm also experiencing this issue. Like a few others on the thread, my setup is a Pi 3B+ with the official 7" DSI display and a Hifiberry AMP2. I boot the system from a USB flash drive (sandisk ultra fit 16BG).
Here's the initial log after boot:
Code:
20210411 145642 worker: -- Start
20210411 145642 worker: Successfully daemonized
20210411 145642 worker: Integrity check (passed)
20210411 145643 worker: File check (OK)
20210411 145644 worker: Session vacuumed
20210411 145644 worker: Session loaded
20210411 145644 worker: Debug logging (OFF)
20210411 145644 worker: -- Device
20210411 145644 worker: ALSA cards: (0:sndrpihifiberry | 1:empty | 2:empty | 3:empty
20210411 145644 worker: MPD config: (0:HiFiBerry Amp2 | mixer:(Digital) | card:0)
20210411 145644 worker: ALSA mixer actual (Digital)
20210411 145644 worker: ALSA Digital volume set to (0%)
20210411 145644 worker: -- System
20210411 145646 worker: Host     (sunroom71)
20210411 145646 worker: moOde    (7.1.0 2021-03-15)
20210411 145646 worker: RaspiOS  (10.6)
20210411 145646 worker: Kernel   (5.4.77-v7+ #1371)
20210411 145646 worker: Platform (Pi-3B+ 1.3 1GB)
20210411 145646 worker: ARM arch (armv7l, 32-bit kernel)
20210411 145646 worker: MPD ver  (0.22.6_p0x3)
20210411 145646 worker: CPU gov  (ondemand)
20210411 145646 worker: USB boot enabled
20210411 145646 worker: File system expanded
20210411 145646 worker: HDMI port off
20210411 145646 worker: -- Network
20210411 145646 worker: eth0 exists
20210411 145646 worker: eth0 address not assigned
20210411 145646 worker: wlan0 exists
20210411 145646 worker: Pi integrated wlan0 power save disabled
20210411 145646 worker: wifi country (UK)
20210411 145646 worker: wlan0 trying SSID (iris_5G)
20210411 145646 worker: IP addr (10.0.0.25)
20210411 145646 worker: Netmask (255.255.255.0)
20210411 145647 worker: Gateway (10.0.0.1)
20210411 145647 worker: Pri DNS (208.67.220.220)
20210411 145647 worker: Domain  (208.67.222.222)
20210411 145647 worker: -- Audio
20210411 145647 worker: MPD conf updated
20210411 145647 worker: ALSA card number (0)
20210411 145647 worker: MPD audio output (HiFiBerry Amp2)
20210411 145647 worker: Audio formats (S16_LE, S24_LE, S32_LE)
20210411 145647 worker: ALSA mixer name (Digital)
20210411 145647 worker: MPD volume control (hardware)
20210411 145647 worker: Hdwr volume controller exists
20210411 145647 worker: Max ALSA volume (100%)
20210411 145647 worker: Reset renderer active flags
20210411 145647 worker: CamillaDSP (off)
20210411 145647 worker: -- MPD
20210411 145647 worker: MPD started
20210411 145648 worker: MPD accepting connections
20210411 145648 worker: MPD output 1 ALSA Default (on)
20210411 145648 worker: MPD output 2 ALSA Crossfeed (off)
20210411 145648 worker: MPD output 3 ALSA Parametric EQ (off)
20210411 145648 worker: MPD output 4 ALSA Graphic EQ (off)
20210411 145648 worker: MPD output 5 ALSA Polarity Inv (off)
20210411 145648 worker: MPD output 6 ALSA CamillaDSP (off)
20210411 145648 worker: MPD output 7 ALSA Bluetooth (off)
20210411 145648 worker: MPD output 8 HTTP Server (off)
20210411 145648 worker: MPD crossfade (off)
20210411 145648 worker: MPD ignore CUE files (yes)
20210411 145648 worker: -- Feature availability
20210411 145648 worker: Source select (available)
20210411 145648 worker: Source select (source: MPD)
20210411 145648 worker: Source select (output: HiFiBerry Amp2)
20210411 145648 worker: Bluetooth (available)
20210411 145648 worker: Airplay renderer (available: started)
20210411 145648 worker: Spotify renderer (available: started)
20210411 145648 worker: Squeezelite (available)
20210411 145648 worker: RoonBridge renderer (not installed)
20210411 145648 worker: UPnP renderer (available)
20210411 145648 worker: DLNA server (available)
20210411 145648 worker: UPnP browser (available)
20210411 145648 worker: GPIO button handler (available)
20210411 145648 worker: Stream recorder (n/a)
20210411 145648 worker: -- Music sources
20210411 145648 worker: USB sources (none attached)
20210411 145649 worker: NAS and UPnP sources (mountall initiated)
20210411 145649 worker: -- Miscellaneous
20210411 145649 worker: USB volume knob (Off)
20210411 145649 worker: USB auto-mounter (udisks-glue)
20210411 145649 worker: LED0 (Off)
20210411 145649 worker: LED1 (Off)
20210411 145649 worker: Saved MPD vol level (0)
20210411 145649 worker: Preamp volume level (0)
20210411 145649 worker: MPD volume level (15) restored
20210411 145649 worker: ALSA Digital volume (53%)
20210411 145649 worker: Auto-play (Off)
20210411 145649 worker: LocalUI started
20210411 145649 worker: Maintenance interval (3 hrs)
20210411 145649 worker: Screen saver activation (Never)
20210411 145649 worker: Session permissions (OK)
20210411 145649 worker: Watchdog started
20210411 145649 worker: Ready
And here's the output from top when things have started to misbehave:
Code:
top -b -n1 -1
top - 14:18:09 up  3:56,  1 user,  load average: 0.52, 0.52, 0.48
Tasks: 152 total,   1 running, 151 sleeping,   0 stopped,   0 zombie
%Cpu0  : 10.5 us,  0.0 sy,  0.0 ni, 89.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu1  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu2  :  5.9 us, 11.8 sy,  0.0 ni, 82.4 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu3  : 15.0 us,  0.0 sy,  0.0 ni, 85.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :    924.8 total,     21.2 free,    800.0 used,    103.6 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.     44.4 avail Mem

 PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
1025 pi        20   0 1047264 700628  48616 S  11.8  74.0  39:38.59 chromium-browse
20537 pi        20   0   10536   3096   2672 R  11.8   0.3   0:00.04 top
1016 pi        20   0  298548  36952  19844 S   5.9   3.9   6:45.11 chromium-browse
20239 root      20   0       0      0      0 I   5.9   0.0   0:15.11 kworker/2:1-events
   1 root      20   0   15280   3892   2344 S   0.0   0.4   0:07.38 systemd
   2 root      20   0       0      0      0 S   0.0   0.0   0:00.03 kthreadd
   3 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_gp
   4 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_par_gp
   6 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0H-kblockd
   8 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mm_percpu_wq
   9 root      20   0       0      0      0 S   0.0   0.0   0:00.71 ksoftirqd/0
  10 root      20   0       0      0      0 I   0.0   0.0   0:04.15 rcu_sched
  11 root      rt   0       0      0      0 S   0.0   0.0   0:00.05 migration/0
  12 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/0
  13 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/1
  14 root      rt   0       0      0      0 S   0.0   0.0   0:00.06 migration/1
  15 root      20   0       0      0      0 S   0.0   0.0   0:00.53 ksoftirqd/1
  17 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/1:0H-kblockd
  18 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/2
  19 root      rt   0       0      0      0 S   0.0   0.0   0:00.02 migration/2
  20 root      20   0       0      0      0 S   0.0   0.0   0:10.54 ksoftirqd/2
  22 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/2:0H-kblockd
  23 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/3
  24 root      rt   0       0      0      0 S   0.0   0.0   0:00.05 migration/3
  25 root      20   0       0      0      0 S   0.0   0.0   0:00.83 ksoftirqd/3
  27 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/3:0H-kblockd
  28 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kdevtmpfs
  29 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 netns
  32 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kauditd
  33 root      20   0       0      0      0 S   0.0   0.0   0:00.02 khungtaskd
  34 root      20   0       0      0      0 S   0.0   0.0   0:00.00 oom_reaper
  35 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 writeback
  36 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kcompactd0
  54 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kblockd
  55 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 blkcg_punt_bio
  56 root      rt   0       0      0      0 S   0.0   0.0   0:00.00 watchdogd
  58 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rpciod
  60 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 xprtiod
  61 root      20   0       0      0      0 S   0.0   0.0   0:01.31 kswapd0
  62 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 nfsiod
  64 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 iscsi_eh
  65 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 dwc_otg
  66 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 DWC Notificatio
  68 root       1 -19       0      0      0 S   0.0   0.0   0:00.00 vchiq-slot/0
  69 root       1 -19       0      0      0 S   0.0   0.0   0:00.00 vchiq-recy/0
  70 root       0 -20       0      0      0 S   0.0   0.0   0:00.00 vchiq-sync/0
  71 root      20   0       0      0      0 S   0.0   0.0   0:00.00 vchiq-keep/0
  72 root      10 -10       0      0      0 S   0.0   0.0   0:00.00 SMIO
  75 root      20   0       0      0      0 S   0.0   0.0   0:00.00 scsi_eh_0
  76 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 scsi_tmf_0
  77 root      20   0       0      0      0 S   0.0   0.0   0:02.52 usb-storage
  81 root     -51   0       0      0      0 S   0.0   0.0   0:00.00 irq/166-usb-001
  82 root       0 -20       0      0      0 I   0.0   0.0   0:00.10 kworker/1:1H-kblockd
  83 root      20   0       0      0      0 S   0.0   0.0   0:00.68 jbd2/sda2-8
  84 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 ext4-rsv-conver
  85 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 ipv6_addrconf
  87 root       0 -20       0      0      0 I   0.0   0.0   0:00.10 kworker/2:1H-kblockd
  88 root       0 -20       0      0      0 I   0.0   0.0   0:00.13 kworker/0:1H-kblockd
  90 root       0 -20       0      0      0 I   0.0   0.0   0:00.12 kworker/3:1H-kblockd
 116 root      20   0   18976   3720   2868 S   0.0   0.4   0:00.64 systemd-journal
 148 root      20   0   18628   2560   1648 S   0.0   0.3   0:01.33 systemd-udevd
 167 root      10 -10       0      0      0 S   0.0   0.0   0:00.00 SMIO
 187 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 190 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 192 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 193 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 222 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 cfg80211
 229 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 brcmf_wq/mmc1:0
 231 root      20   0       0      0      0 S   0.0   0.0   0:05.33 brcmf_wdog/mmc1
 233 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 uas
 315 systemd+  20   0   22984   3060   2352 S   0.0   0.3   0:00.48 systemd-timesyn
 318 root      20   0    7712   4252   1188 S   0.0   0.4   0:02.85 haveged
 322 _rpc      20   0    6576   2216   1892 S   0.0   0.2   0:00.07 rpcbind
 358 root      39  19    3692   1584   1344 S   0.0   0.2   0:00.06 alsactl
 360 message+  20   0    7068   2932   2348 S   0.0   0.3   0:01.56 dbus-daemon
 362 root      20   0   10740   2380   1972 S   0.0   0.3   0:00.15 wpa_supplicant
 364 root      20   0   25860   2272   1924 S   0.0   0.2   0:00.12 rsyslogd
 370 root      20   0   13388   3080   2412 S   0.0   0.3   0:00.60 systemd-logind
 371 avahi     20   0    6244   2788   2364 S   0.0   0.3   0:04.25 avahi-daemon
 379 root      20   0   27656     80      0 S   0.0   0.0   0:01.34 rngd
 383 avahi     20   0    6120    288      0 S   0.0   0.0   0:00.00 avahi-daemon
 411 root      20   0   11352   1968   1336 S   0.0   0.2   0:00.19 wpa_supplicant
 473 root      20   0    2904   1376    968 S   0.0   0.1   0:00.06 dhcpcd
 474 root      20   0  200928   7584   5204 S   0.0   0.8   0:01.32 php-fpm7.3
 478 root      20   0   31980   4556   3144 S   0.0   0.5   0:00.97 nmbd
 482 root      20   0   10928   2628   2060 S   0.0   0.3   0:00.03 sshd
 486 root      20   0   10180   1844   1416 S   0.0   0.2   0:00.00 udisks-glue
 489 root      20   0   29328   2588   1980 S   0.0   0.3   0:00.10 udisks-daemon
 491 root      20   0   10644    684    308 S   0.0   0.1   0:00.00 udisks-daemon
 494 root      20   0   38312   2816   2200 S   0.0   0.3   0:00.04 polkitd
 499 root      20   0   50616   1168      0 S   0.0   0.1   0:00.00 nginx
 500 www-data  20   0   51256   2808   1284 S   0.0   0.3   0:00.64 nginx
 501 www-data  20   0   51116   2692   1284 S   0.0   0.3   0:00.03 nginx
 502 www-data  20   0   50768   2208    888 S   0.0   0.2   0:00.00 nginx
 503 www-data  20   0   50768   2208    888 S   0.0   0.2   0:00.00 nginx
 505 www-data  20   0  201392   9776   6016 S   0.0   1.0   0:00.28 php-fpm7.3
 509 root      20   0   40476   5376   3636 S   0.0   0.6   0:00.59 winbindd
 510 root      20   0  201116   9360   4240 S   0.0   1.0   0:23.25 worker.php
 514 root      20   0    4656   1396   1284 S   0.0   0.1   0:00.01 agetty
 515 root      20   0    6964   1820   1704 S   0.0   0.2   0:00.01 agetty
 544 root      20   0   40892   4332   2588 S   0.0   0.5   0:00.10 winbindd
 550 root      20   0   48552   6388   4412 S   0.0   0.7   0:00.37 smbd
 588 root      20   0   45424   3672   1796 S   0.0   0.4   0:00.01 smbd-notifyd
 589 root      20   0   45424   2472    596 S   0.0   0.3   0:00.02 cleanupd
 594 root      20   0   38932   3416   1744 S   0.0   0.4   0:00.02 winbindd
 596 root      20   0   40476   4176   2456 S   0.0   0.4   0:00.04 winbindd
 806 mpd       20   0  174432  10504   2760 S   0.0   1.1   0:01.19 mpd
 823 root      20   0   10572   2424   2024 S   0.0   0.3   0:00.01 sudo
 825 root      20   0   10572   2352   1952 S   0.0   0.2   0:00.00 sudo
 828 root      20   0  131748   5636   2460 S   0.0   0.6   5:49.21 shairport-sync
 829 root      20   0   24736   2588   2012 S   0.0   0.3   0:01.50 librespot
 889 pi        20   0    3872    208     76 S   0.0   0.0   0:00.01 xinit
 891 root      20   0  193752  17020   5308 S   0.0   1.8   0:01.08 Xorg
 900 root      20   0    7676   1932   1764 S   0.0   0.2   0:12.73 watchdog.sh
 918 pi        20   0    7676   2392   2248 S   0.0   0.3   0:00.00 .xinitrc
 924 pi        20   0  579816  39940  17632 S   0.0   4.2   0:48.33 chromium-browse
 939 pi        20   0  209120  11384   5660 S   0.0   1.2   0:00.24 chromium-browse
 940 pi        20   0  209120  11352   5600 S   0.0   1.2   0:00.23 chromium-browse
 942 pi        20   0  209120   7752   1992 S   0.0   0.8   0:00.00 chromium-browse
 980 pi        20   0  280128  18824  10876 S   0.0   2.0   0:29.92 chromium-browse
 990 pi        20   0  250512  13364   7292 S   0.0   1.4   0:00.29 chromium-browse
1018 pi        20   0  224308   8864   2244 S   0.0   0.9   0:00.00 chromium-browse
1040 www-data  20   0  201376   9636   6000 S   0.0   1.0   0:00.53 php-fpm7.3
1063 www-data  20   0  201376   9452   6004 S   0.0   1.0   0:00.17 php-fpm7.3
1250 www-data  20   0  201372   8952   5592 S   0.0   0.9   0:00.21 php-fpm7.3
1264 www-data  20   0  201372   8952   5596 S   0.0   0.9   0:00.17 php-fpm7.3
1645 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/u9:2-xprtiod
1870 root      20   0   12440   3128   2316 S   0.0   0.3   0:00.18 sshd
1876 pi        20   0   14596   3244   2320 S   0.0   0.3   0:00.22 systemd
1878 pi        20   0   17024   1672      0 S   0.0   0.2   0:00.00 (sd-pam)
1921 pi        20   0   12440   2272   1452 S   0.0   0.2   0:03.01 sshd
1922 pi        20   0    8840   3832   2892 S   0.0   0.4   0:00.24 bash
15807 www-data  20   0  201372   8908   5552 S   0.0   0.9   0:00.08 php-fpm7.3
15814 www-data  20   0  201372   8344   5172 S   0.0   0.9   0:00.10 php-fpm7.3
17422 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/u9:1
17801 root      20   0       0      0      0 I   0.0   0.0   0:00.36 kworker/1:1-events
18865 root      20   0       0      0      0 I   0.0   0.0   0:00.59 kworker/u8:2-events_unbound
19000 root      20   0       0      0      0 I   0.0   0.0   0:02.17 kworker/3:1-events_freezable
19218 root      20   0       0      0      0 I   0.0   0.0   0:42.71 kworker/2:0-events
19238 root      20   0       0      0      0 I   0.0   0.0   0:00.46 kworker/u8:1-events_unbound
19445 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/1:0-mm_percpu_wq
19540 root      20   0       0      0      0 I   0.0   0.0   0:00.05 kworker/2:3-mm_percpu_wq
19597 root      20   0       0      0      0 I   0.0   0.0   0:00.85 kworker/0:1-events
19868 root      20   0       0      0      0 I   0.0   0.0   0:34.53 kworker/2:2-events_freezable_power_
20000 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/3:0-events_freezable
20013 root      20   0       0      0      0 I   0.0   0.0   0:00.20 kworker/u8:3-brcmf_wq/mmc1:0001:1
20164 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/0:2-events
20320 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/3:2-events_freezable
20354 root      20   0       0      0      0 I   0.0   0.0   0:00.11 kworker/u8:0-events_unbound
20479 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/1:2
20498 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0
20536 root      20   0    6456    360    308 S   0.0   0.0   0:00.00 sleep
I've no idea if these are red herrings, but I have set the display to sleep after 10 seconds, and wake on play. The pixel aspect ratio is set to square.
I'm more than happy to share other logs/settings info if that would be useful.

Cheers,

NB

RE: Local display function fails with HDMI in moOde 7.0.1 - TheOldPresbyope - 04-15-2021

Sigh.

Even though the title of this thread clearly says "with HDMI" it seems to have mutated into an issue with DSI displays.

My official RPi 7" DSI touchscreen is encased with an RPi that drives an external USB DAC. With no release of moOde has this system experienced the reported local display failure mode. I've seen it occur only with HDMI displays.

What I find interesting about the me-too DSI posts to this thread is that Alaini93 is using a HiFiBerry DAC+ Pro while pgzh1, ciro73, and new_bloke are using a HiFiBerry AMP2 DAC. Is it just a coincidence that these few DSI failure reports involve I2S and the same driver or are we seeing real evidence here? [I'm beginning to feel like an epidemiologist here.]

I'm not going to pull my encased system apart to test with an I2S DAC.

Perhaps one of you four who report experiencing the failure using a DSI display could try switching to a different audio output---onboard audio jack or USB DAC---and seeing if the local display function continues to result in the chromium-browser eating up system memory.

Regards,
Kent

RE: Local display function fails with HDMI in moOde 7.0.1 - new_bloke - 04-15-2021

(04-15-2021, 12:24 PM)TheOldPresbyope Wrote: Sigh.

Even though the title of this thread clearly says "with HDMI" it seems to have mutated into an issue with DSI displays.

My official RPi 7" DSI touchscreen is encased with an RPi that drives an external USB DAC. With no release of moOde has this system experienced the reported local display failure mode. I've seen it occur only with HDMI displays.

What I find interesting about the me-too DSI posts to this thread is that Alaini93 is using a HiFiBerry DAC+ Pro while pgzh1, ciro73, and new_bloke are using a HiFiBerry AMP2 DAC. Is it just a coincidence that these few DSI failure reports involve I2S and the same driver or are we seeing real evidence here? [I'm beginning to feel like an epidemiologist here.]

I'm not going to pull my encased system apart to test with an I2S DAC.

Perhaps one of you four who report experiencing the failure using a DSI display could try switching to a different audio output---onboard audio jack or USB DAC---and seeing if the local display function continues to result in the chromium-browser eating up system memory.

Regards,
Kent

I'm sorry that my post has irritated you. I'd be happy to delete it and start a new thread if you'd prefer. I test software for a living, and it's often the case that what looks like a specific scenario may have a root cause that manifests via other routes as well. I'd be more than happy to help investigate if it can be of use to the community of moode users. I have purchased a separate USB thumb drive for this purpose so I can switch between versions without a reinstall. Please let me know what information would be most useful in terms of output (other settings or logs).

RE: Local display function fails with HDMI in moOde 7.0.1 - TheOldPresbyope - 04-15-2021

(04-15-2021, 03:08 PM)new_bloke Wrote:
(04-15-2021, 12:24 PM)TheOldPresbyope Wrote: Sigh.

Even though the title of this thread clearly says "with HDMI" it seems to have mutated into an issue with DSI displays.

My official RPi 7" DSI touchscreen is encased with an RPi that drives an external USB DAC. With no release of moOde has this system experienced the reported local display failure mode. I've seen it occur only with HDMI displays.

What I find interesting about the me-too DSI posts to this thread is that Alaini93 is using a HiFiBerry DAC+ Pro while pgzh1, ciro73, and new_bloke are using a HiFiBerry AMP2 DAC. Is it just a coincidence that these few DSI failure reports involve I2S and the same driver or are we seeing real evidence here? [I'm beginning to feel like an epidemiologist here.]

I'm not going to pull my encased system apart to test with an I2S DAC.

Perhaps one of you four who report experiencing the failure using a DSI display could try switching to a different audio output---onboard audio jack or USB DAC---and seeing if the local display function continues to result in the chromium-browser eating up system memory.

Regards,
Kent

I'm sorry that my post has irritated you. I'd be happy to delete it and start a new thread if you'd prefer. I test software for a living, and it's often the case that what looks like a specific scenario may have a root cause that manifests via other routes as well. I'd be more than happy to help investigate if it can be of use to the community of moode users. I have purchased a separate USB thumb drive for this purpose so I can switch between versions without a reinstall. Please let me know what information would be most useful in terms of output (other settings or logs).

Re "irritation": Sorry, I was feeling more bemused than irritated. There may well be a root cause but posts should not get buried in pre-existing threads before it's known if there is a connection.

IMO its better to have multiple threads with specific titles that later get merged when more details are discovered. This makes it much easier for readers and testers to find relevant conversations. If you've tried the forum search feature you'll know what I mean. 

Still, I'm a curmudgeon channeling my college librarian on this issue (her motto: a place for everything and everything in its place). This forum is as messily organized as most other forums are. It certainly beats the old days when all things "moOde" were posted to a single thread on the diyaudio.com forum.

Re: more info

1) I've seen no similar posts from users of DSI displays and DACs other than HiFiBerry Hats. If there are such folks having similar problems, we need to hear from them.
2) I've already suggested a test which could show whether the coincidence of HiFiBerry Hats/drivers is a red herring.

Other than that, for either display subsystem we need some way of understand what's driving the chromium-browser's render process to binge feed on system memory. The usual Linux logs and tools suffice to tell us which process it is but that's about it. So far, we haven't found a way to characterize this with enough supporting detail to make an intelligent case to the chromium devs and/or the Raspberry Pi OS devs (or even which group to approach).

All suggestions welcome.

Regards,
Kent

RE: Local display function fails with HDMI in moOde 7.0.1 - new_bloke - 04-17-2021

Hi,
As suggested, I tried setting the audio output to the onboard jack - the same issue was observed as before:
Code:
moodeutl -l
20210415 180640 worker: -- Start
20210415 180640 worker: Successfully daemonized
20210415 180640 worker: Integrity check (passed)
20210415 180641 worker: File check (OK)
20210415 180642 worker: Session vacuumed
20210415 180642 worker: Session loaded
20210415 180642 worker: Debug logging (OFF)
20210415 180642 worker: -- Device
20210415 180642 worker: ALSA cards: (0:Headphones | 1:empty | 2:empty | 3:empty
20210415 180642 worker: MPD config: (0:HiFiBerry Amp2 | mixer:(Digital) | card:0)
20210415 180642 worker: ALSA mixer actual (Headphone)
20210415 180642 worker: ALSA Headphone volume set to (0%)
20210415 180642 worker: -- System
20210415 180644 worker: Host     (sunroom71)
20210415 180644 worker: moOde    (7.1.0 2021-03-15)
20210415 180644 worker: RaspiOS  (10.6)
20210415 180644 worker: Kernel   (5.4.77-v7+ #1371)
20210415 180644 worker: Platform (Pi-3B+ 1.3 1GB)
20210415 180644 worker: ARM arch (armv7l, 32-bit kernel)
20210415 180644 worker: MPD ver  (0.22.6_p0x3)
20210415 180644 worker: CPU gov  (ondemand)
20210415 180644 worker: USB boot enabled
20210415 180644 worker: File system expanded
20210415 180644 worker: HDMI port off
20210415 180644 worker: -- Network
20210415 180644 worker: eth0 exists
20210415 180644 worker: eth0 address not assigned
20210415 180644 worker: wlan0 exists
20210415 180644 worker: Pi integrated wlan0 power save disabled
20210415 180644 worker: wifi country (UK)
20210415 180644 worker: wlan0 trying SSID (iris_5G)
20210415 180645 worker: IP addr (10.0.0.25)
20210415 180645 worker: Netmask (255.255.255.0)
20210415 180645 worker: Gateway (10.0.0.1)
20210415 180645 worker: Pri DNS (208.67.220.220)
20210415 180645 worker: Domain  (208.67.222.222)
20210415 180645 worker: -- Audio
20210415 180645 worker: ALSA card number (0)
20210415 180645 worker: MPD audio output (Pi Headphone jack)
20210415 180645 worker: Audio formats (U8, S16_LE)
20210415 180645 worker: ALSA mixer name (Digital)
20210415 180645 worker: MPD volume control (hardware)
20210415 180645 worker: Hdwr volume controller not detected
20210415 180645 worker: Reset renderer active flags
20210415 180645 worker: CamillaDSP (off)
20210415 180645 worker: -- MPD
20210415 180645 worker: MPD started
20210415 180646 worker: MPD accepting connections
20210415 180646 worker: MPD output 1 ALSA Default (on)
20210415 180646 worker: MPD output 2 ALSA Crossfeed (off)
20210415 180646 worker: MPD output 3 ALSA Parametric EQ (off)
20210415 180646 worker: MPD output 4 ALSA Graphic EQ (off)
20210415 180646 worker: MPD output 5 ALSA Polarity Inv (off)
20210415 180646 worker: MPD output 6 ALSA CamillaDSP (off)
20210415 180646 worker: MPD output 7 ALSA Bluetooth (off)
20210415 180646 worker: MPD output 8 HTTP Server (off)
20210415 180646 worker: MPD crossfade (off)
20210415 180646 worker: MPD ignore CUE files (yes)
20210415 180646 worker: -- Feature availability
20210415 180646 worker: Source select (available)
20210415 180646 worker: Source select (source: MPD)
20210415 180646 worker: Source select (output: Pi Headphone jack)
20210415 180646 worker: Bluetooth (available)
20210415 180646 worker: Airplay renderer (available: started)
20210415 180646 worker: Spotify renderer (available: started)
20210415 180646 worker: Squeezelite (available)
20210415 180646 worker: RoonBridge renderer (not installed)
20210415 180646 worker: UPnP renderer (available)
20210415 180646 worker: DLNA server (available)
20210415 180646 worker: UPnP browser (available)
20210415 180646 worker: GPIO button handler (available)
20210415 180646 worker: Stream recorder (n/a)
20210415 180646 worker: -- Music sources
20210415 180646 worker: USB sources (none attached)
20210415 180647 worker: NAS and UPnP sources (mountall initiated)
20210415 180647 worker: -- Miscellaneous
20210415 180647 worker: USB volume knob (Off)
20210415 180647 worker: USB auto-mounter (udisks-glue)
20210415 180647 worker: LED0 (Off)
20210415 180647 worker: LED1 (Off)
20210415 180647 worker: Saved MPD vol level (0)
20210415 180647 worker: Preamp volume level (0)
20210415 180647 worker: MPD volume level (0) restored
20210415 180647 worker: ALSA volume level (None)
20210415 180647 worker: Auto-play (Off)
20210415 180647 worker: LocalUI started
20210415 180647 worker: Maintenance interval (3 hrs)
20210415 180647 worker: Screen saver activation (60)
20210415 180647 worker: Session permissions (OK)
20210415 180647 worker: Watchdog started
20210415 180647 worker: Ready
20210415 180744 coverart: mp3: /var/lib/mpd/music/NAS/Synology/Jukebox backup/Music/0smosis/Unknown Album/Hangin' with Lucie (1998).mp3
20210415 180744 coverart: mp3: Zend media exception: File does not contain ID3v2 tag
20210415 180813 worker: Job mpdcfg
Output from top:
Code:
top -b -n1 -1
top - 20:37:12 up  2:30,  1 user,  load average: 11.95, 10.09, 6.52
Tasks: 149 total,   2 running, 147 sleeping,   0 stopped,   0 zombie
%Cpu0  :  0.3 us,  8.3 sy,  0.0 ni,  0.0 id, 89.3 wa,  0.0 hi,  2.1 si,  0.0 st
%Cpu1  :  0.0 us, 10.2 sy,  0.0 ni,  0.0 id, 89.5 wa,  0.0 hi,  0.4 si,  0.0 st
%Cpu2  :  0.0 us,  5.4 sy,  0.0 ni, 92.7 id,  1.8 wa,  0.0 hi,  0.1 si,  0.0 st
%Cpu3  :  0.1 us,  9.8 sy,  0.0 ni,  0.0 id, 89.9 wa,  0.0 hi,  0.2 si,  0.0 st
MiB Mem :    924.8 total,     26.0 free,    852.7 used,     46.1 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.     11.6 avail Mem

 PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
  61 root      20   0       0      0      0 S   2.0   0.0   2:29.44 kswapd0
9793 root      20   0       0      0      0 I   1.7   0.0   0:28.98 kworker/2:3-events_freezable
   1 root      20   0   15272   1952    400 D   0.8   0.2   0:10.33 systemd
  77 root      20   0       0      0      0 R   0.7   0.0   1:30.74 usb-storage
 886 pi        20   0  580840  22940    136 D   0.4   2.4   0:55.84 chromium-browse
9982 pi        20   0   10536   1396    932 R   0.4   0.1   0:00.20 top
  82 root       0 -20       0      0      0 I   0.1   0.0   0:04.74 kworker/1:1H-kblockd
 351 message+  20   0    7068    580      0 S   0.1   0.1   0:01.35 dbus-daemon
 942 pi        20   0  280128   8284    244 S   0.1   0.9   0:31.03 chromium-browse
 979 pi        20   0  294476  21116   5140 S   0.1   2.2   4:33.41 chromium-browse
 988 pi        20   0 1128172 711484   4428 D   0.1  75.1  22:54.35 chromium-browse
9985 root      20   0    6456     64      0 S   0.1   0.0   0:00.01 sleep
   2 root      20   0       0      0      0 S   0.0   0.0   0:00.02 kthreadd
   3 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_gp
   4 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_par_gp
   6 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0H-kblockd
   8 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mm_percpu_wq
   9 root      20   0       0      0      0 S   0.0   0.0   0:02.95 ksoftirqd/0
  10 root      20   0       0      0      0 I   0.0   0.0   0:03.11 rcu_sched
  11 root      rt   0       0      0      0 S   0.0   0.0   0:00.01 migration/0
  12 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/0
  13 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/1
  14 root      rt   0       0      0      0 S   0.0   0.0   0:00.04 migration/1
  15 root      20   0       0      0      0 S   0.0   0.0   0:02.98 ksoftirqd/1
  17 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/1:0H-kblockd
  18 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/2
  19 root      rt   0       0      0      0 S   0.0   0.0   0:00.02 migration/2
  20 root      20   0       0      0      0 S   0.0   0.0   0:07.41 ksoftirqd/2
  22 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/2:0H-kblockd
  23 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/3
  24 root      rt   0       0      0      0 S   0.0   0.0   0:00.03 migration/3
  25 root      20   0       0      0      0 S   0.0   0.0   0:03.32 ksoftirqd/3
  27 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/3:0H
  28 root      20   0       0      0      0 S   0.0   0.0   0:00.01 kdevtmpfs
  29 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 netns
  32 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kauditd
  33 root      20   0       0      0      0 S   0.0   0.0   0:00.01 khungtaskd
  34 root      20   0       0      0      0 S   0.0   0.0   0:00.00 oom_reaper
  35 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 writeback
  36 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kcompactd0
  54 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kblockd
  55 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 blkcg_punt_bio
  56 root      rt   0       0      0      0 S   0.0   0.0   0:00.00 watchdogd
  58 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rpciod
  60 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 xprtiod
  62 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 nfsiod
  64 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 iscsi_eh
  65 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 dwc_otg
  66 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 DWC Notificatio
  68 root       1 -19       0      0      0 S   0.0   0.0   0:00.03 vchiq-slot/0
  69 root       1 -19       0      0      0 S   0.0   0.0   0:00.00 vchiq-recy/0
  70 root       0 -20       0      0      0 S   0.0   0.0   0:00.00 vchiq-sync/0
  71 root      20   0       0      0      0 S   0.0   0.0   0:00.00 vchiq-keep/0
  72 root      10 -10       0      0      0 S   0.0   0.0   0:00.00 SMIO
  75 root      20   0       0      0      0 S   0.0   0.0   0:00.00 scsi_eh_0
  76 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 scsi_tmf_0
  81 root     -51   0       0      0      0 S   0.0   0.0   0:00.00 irq/166-usb-001
  83 root      20   0       0      0      0 S   0.0   0.0   0:00.42 jbd2/sda2-8
  84 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 ext4-rsv-conver
  85 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 ipv6_addrconf
  87 root       0 -20       0      0      0 I   0.0   0.0   0:04.89 kworker/0:1H-kblockd
  89 root       0 -20       0      0      0 I   0.0   0.0   0:02.62 kworker/2:1H-kblockd
 102 root       0 -20       0      0      0 I   0.0   0.0   0:04.91 kworker/3:1H-kblockd
 118 root      20   0   18976   1592    744 S   0.0   0.2   0:00.77 systemd-journal
 146 root      20   0   18628    904      0 S   0.0   0.1   0:01.12 systemd-udevd
 160 root      10 -10       0      0      0 S   0.0   0.0   0:00.00 SMIO
 181 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 186 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 189 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 193 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mmal-vchiq
 219 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 uas
 225 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 cfg80211
 228 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 brcmf_wq/mmc1:0
 231 root      20   0       0      0      0 S   0.0   0.0   0:02.64 brcmf_wdog/mmc1
 309 _rpc      20   0    6576    328      0 S   0.0   0.0   0:00.07 rpcbind
 312 root      20   0    7712   3092     28 S   0.0   0.3   0:04.83 haveged
 313 systemd+  20   0   22984    752     44 S   0.0   0.1   0:00.36 systemd-timesyn
 353 root      39  19    3692    236      0 S   0.0   0.0   0:00.05 alsactl
 356 root      20   0   13388   1736   1068 D   0.0   0.2   0:01.07 systemd-logind
 360 root      20   0   25860    700      0 S   0.0   0.1   0:00.14 rsyslogd
 362 avahi     20   0    6244    412      0 S   0.0   0.0   0:02.74 avahi-daemon
 365 root      20   0   10740    408      0 S   0.0   0.0   0:00.23 wpa_supplicant
 368 root      20   0   27656    140      0 S   0.0   0.0   0:03.16 rngd
 376 avahi     20   0    6120    288      0 S   0.0   0.0   0:00.00 avahi-daemon
 402 root      20   0   11352    636      0 S   0.0   0.1   0:00.35 wpa_supplicant
 466 root      20   0    2904    408      0 S   0.0   0.0   0:00.08 dhcpcd
 467 root      20   0  200928   4636   2256 S   0.0   0.5   0:02.78 php-fpm7.3
 471 root      20   0   31980   1416      4 S   0.0   0.1   0:01.46 nmbd
 475 root      20   0   10928    568      0 S   0.0   0.1   0:00.03 sshd
 479 root      20   0   10180    476     48 S   0.0   0.1   0:00.01 udisks-glue
 481 root      20   0   29368    664      0 S   0.0   0.1   0:00.11 udisks-daemon
 484 root      20   0   10644    376      0 S   0.0   0.0   0:00.00 udisks-daemon
 487 root      20   0   38312    660     40 S   0.0   0.1   0:00.05 polkitd
 492 root      20   0   50616   1168      0 S   0.0   0.1   0:00.00 nginx
 493 www-data  20   0   51164   1580     52 S   0.0   0.2   0:00.61 nginx
 494 www-data  20   0   50768   1320      0 S   0.0   0.1   0:00.00 nginx
 495 www-data  20   0   50768   1320      0 S   0.0   0.1   0:00.00 nginx
 496 www-data  20   0   50768   1320      0 S   0.0   0.1   0:00.00 nginx
 502 root      20   0   40476   2004    264 S   0.0   0.2   0:01.17 winbindd
 503 root      20   0  201128   6592   1528 S   0.0   0.7   0:21.02 worker.php
 507 root      20   0    4656    112      0 S   0.0   0.0   0:00.01 agetty
 508 root      20   0    6964    116      0 S   0.0   0.0   0:00.01 agetty
 533 root      20   0   40892   2024    280 S   0.0   0.2   0:00.43 winbindd
 537 root      20   0   48552   2868    892 S   0.0   0.3   0:00.35 smbd
 579 root      20   0   45424   1884      8 S   0.0   0.2   0:00.02 smbd-notifyd
 580 root      20   0   45424   1876      0 S   0.0   0.2   0:00.02 cleanupd
 583 root      20   0   38932   1672      0 S   0.0   0.2   0:00.08 winbindd
 584 root      20   0   40476   2000    280 S   0.0   0.2   0:00.09 winbindd
 792 root      20   0   10572    444     44 S   0.0   0.0   0:00.00 sudo
 794 root      20   0   10572    444     44 S   0.0   0.0   0:00.01 sudo
 797 root      20   0  122252   1092      0 S   0.0   0.1   1:00.21 shairport-sync
 798 root      20   0   24736    596      0 S   0.0   0.1   0:01.78 librespot
 824 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/u9:1
 851 pi        20   0    3872    132      0 S   0.0   0.0   0:00.01 xinit
 852 root      20   0  193748  14480   2768 S   0.0   1.5   0:01.17 Xorg
 862 root      20   0    7676    164      0 S   0.0   0.0   0:08.48 watchdog.sh
 880 pi        20   0    7676    172     28 S   0.0   0.0   0:00.00 .xinitrc
 901 pi        20   0  209120   5724      0 S   0.0   0.6   0:00.23 chromium-browse
 902 pi        20   0  209120   5756      0 S   0.0   0.6   0:00.23 chromium-browse
 904 pi        20   0  209120   5812     48 S   0.0   0.6   0:00.02 chromium-browse
 952 pi        20   0  250512   6088     36 S   0.0   0.6   0:00.37 chromium-browse
 981 pi        20   0  224308   6632      0 S   0.0   0.7   0:00.00 chromium-browse
1246 www-data  20   0  201376   5904   2544 S   0.0   0.6   0:00.13 php-fpm7.3
1286 www-data  20   0  201372   6000   2644 S   0.0   0.6   0:00.05 php-fpm7.3
1356 mpd       20   0  174440  11604      0 S   0.0   1.2   0:01.14 mpd
1416 www-data  20   0  201376   6404   2768 S   0.0   0.7   0:00.22 php-fpm7.3
1443 www-data  20   0  201376   6004   2644 S   0.0   0.6   0:00.07 php-fpm7.3
1450 www-data  20   0  201372   6184   2876 S   0.0   0.7   0:00.10 php-fpm7.3
1673 root      20   0   12440    860     48 S   0.0   0.1   0:00.20 sshd
1682 pi        20   0   14596    972     48 S   0.0   0.1   0:00.19 systemd
1683 pi        20   0   17016   1676      0 S   0.0   0.2   0:00.00 (sd-pam)
1724 pi        20   0   12440    840     12 S   0.0   0.1   0:02.68 sshd
1725 pi        20   0    8840    944      0 S   0.0   0.1   0:00.26 bash
1888 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/u9:2
8355 root      20   0       0      0      0 I   0.0   0.0   0:01.79 kworker/3:2-events_freezable
8886 root      20   0       0      0      0 I   0.0   0.0   0:49.16 kworker/2:0-mm_percpu_wq
8952 root      20   0       0      0      0 I   0.0   0.0   1:23.73 kworker/2:2-events_freezable_power_
9564 root      20   0       0      0      0 I   0.0   0.0   0:00.64 kworker/u8:1-events_unbound
9633 root      20   0       0      0      0 I   0.0   0.0   0:00.13 kworker/1:2-events
9640 root      20   0       0      0      0 I   0.0   0.0   0:00.24 kworker/0:0-events
9808 root      20   0       0      0      0 I   0.0   0.0   0:00.37 kworker/0:1-events
9871 root      20   0       0      0      0 I   0.0   0.0   0:00.09 kworker/1:1-mm_percpu_wq
9901 root      20   0       0      0      0 I   0.0   0.0   0:00.26 kworker/u8:2-brcmf_wq/mmc1:0001:1
9919 root      20   0       0      0      0 I   0.0   0.0   0:00.35 kworker/3:0-events_freezable
9934 root      20   0       0      0      0 I   0.0   0.0   0:00.25 kworker/0:2-events
9936 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/2:1
9949 root      20   0       0      0      0 I   0.0   0.0   0:00.04 kworker/1:0-events
9971 root      20   0       0      0      0 I   0.0   0.0   0:00.07 kworker/3:1-events_freezable
9976 root      20   0       0      0      0 I   0.0   0.0   0:00.00 kworker/u8:0
Is there any mileage in attaching chrome dev tools to see what's going on? I found a couple of hints on how to do that, but would need to set an additional flag when the local display browser is started - can you point me in the direction of where that's done?

RE: Local display function fails with HDMI in moOde 7.0.1 - TheOldPresbyope - 04-17-2021

OK, so the coincidence was a red herring. Not surprising, but a test is better than a guess.

As for running the local browser, have a look at /home/pi/.xinitrc

The last line launches the main chromium-browser process which spawns others.

Incidentally, /proc/<pid>/status contains lots of interesting info about a process. You can find the pid for the chromium-browser with 'type=renderer' by running 'ps aux|grep type=renderer'

Example:

Here the renderer process has pid=20035

Code:
pi@710LD:~ $ ps aux|grep type=renderer
pi       20035 10.1 20.4 608876 193644 ?       Sl   Apr07 1368:53 /usr/lib/chromium-browser/chromium-browser-v7 --type=renderer --field-trial-handle=15160034476641370332,6248687004281252584,131072 --enable-features=OverlayScrollbar --lang=en-GB --enable-auto-reload --origin-trial-disabled-features=MeasureMemory --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --shared-files=v8_snapshot_data:100
pi@710LD:~ $ cat /proc/20035/status
Name:    chromium-browse
Umask:    0022
State:    S (sleeping)
Tgid:    20035
Ngid:    0
Pid:    20035
PPid:    19979
TracerPid:    0
Uid:    1000    1000    1000    1000
Gid:    1000    1000    1000    1000
FDSize:    256
Groups:    4 20 24 27 29 44 46 60 100 105 109 997 998 999 1000 
NStgid:    20035    4    1
NSpid:    20035    4    1
NSpgid:    19949    0    0
NSsid:    19906    0    0
VmPeak:      609960 kB
VmSize:      608876 kB
VmLck:           0 kB
VmPin:           0 kB
VmHWM:      324212 kB
VmRSS:      199268 kB
RssAnon:       44708 kB
RssFile:       83176 kB
RssShmem:       71384 kB
VmData:      172752 kB
VmStk:         132 kB
VmExe:      132528 kB
VmLib:       35304 kB
VmPTE:         782 kB
VmSwap:           0 kB
CoreDumping:    0
THP_enabled:    0
Threads:    11
SigQ:    0/6878
SigPnd:    0000000000000000
ShdPnd:    0000000000000000
SigBlk:    0000000000000000
SigIgn:    0000000000001002
SigCgt:    00000001c0014a25
CapInh:    0000000000000000
CapPrm:    0000000000000000
CapEff:    0000000000000000
CapBnd:    0000003fffffffff
CapAmb:    0000000000000000
NoNewPrivs:    1
Seccomp:    2
Speculation_Store_Bypass:    unknown
Cpus_allowed:    f
Cpus_allowed_list:    0-3
Mems_allowed:    1
Mems_allowed_list:    0
voluntary_ctxt_switches:    52212316
nonvoluntary_ctxt_switches:    73246359

On my Linux desktop and laptops, the main chromium-browser process spawns many processes of type=renderer, more than a dozen even with just a single tab, but we're getting only one in moOde. I've never bothered to figure out why the difference.

Regards,
Kent

RE: Local display function fails with HDMI in moOde 7.0.1 - duke.g - 04-17-2021

Well, here is one of my experiences.
I use a Pi-3B, without any display, local mpd-library with approx. 1000 records and 8000 titles.
Whenever the usage of the input cache in the mdp settings is enabled and in the play-queue there are local titles i.e. titles that are in the mpd database, moode becomes unresponsive. I don't know whether this has something todo with the problem we are discussing here, but I thought it is worth checking the settings of mdp to see if it makes any change.

regards
  Duke.G

RE: Local display function fails with HDMI in moOde 7.0.1 - TheOldPresbyope - 04-17-2021

(04-17-2021, 12:31 PM)duke.g Wrote: Well, here is one of my experiences.
I use a Pi-3B, without any display, local mpd-library with approx. 1000 records and 8000 titles.
Whenever the usage of the input cache in the mdp settings is enabled and in the play-queue there are local titles i.e. titles that are in the mpd database, moode becomes unresponsive. I don't know whether this has something todo with the problem we are discussing here, but I thought it is worth checking the settings of mdp to see if it makes any change.

regards
  Duke.G

@duke.g

Definitely a different issue which deserves its own thread where those with experience using the input cache feature can advise.

Regards,
Kent

RE: Local display function fails with HDMI in moOde 7.0.1 - new_bloke - 04-17-2021

I have been able to successfully connect chrome dev tools to the instance running on the pi by adding the flag:
Code:
--remote-debugging-port=9222

to the command in .xinitrc that launches the browser. I then opened an ssh tunnel to that port:
Code:
ssh -L 9222:localhost:9222 user@host
I was then able to open the devtools on my local machine:
[attachment=2253]
If this provides some useful information, I'd be happy to dig further, but I might need a bit of guidance as to where to look (nothing obvious leapt out so far.)

Cheers,

NB

RE: Local display function fails with HDMI in moOde 7.0.1 - bgonc - 04-19-2021

Hi 

first time contributor to the forum,  loving Moode since early 2020 .

I have a raspberry Pi 3B with an Hifiberry DAC + Pro and an Osoyoo 3.5" DSI touch screen and with Moode 7.1.0 installed 

I verified a similar problem with Chromium memory usage increasing until freezing Moode completely. This started to happen since, at least, version 7.0.1 (although looking retrospectively  I had previously several Chromium Aw! Snap Windows the could be from a similar problem). The problem occurs typically around 27 minutes after pausing the music player.

Trying to avoid being a "Me too!" I used the Local UI display with HDMI on , and with HDMI off while using the DSI display . Independently of the HDMI it always resulted in  the system becoming completely frozen after some time.

Although not proficient in Linux , I think  I found a work around to prevent the problem to occur. I edited the file .xinitrc and added at the end of the chromium-browser launch line:

--single-process --no-zygote --no-sandbox

It is now paused for more than 1 hour without any signs of increase in memory usage (with htop  showing memory usage  to vary between 236 and 259 Mb).

PS: I do not know why it works but I realized using top that the Chromium  process that was using the memory had  a "type=zygote"  and tried to follow from there.