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+--- Thread: MPD error - Failed to open "ALSA default" [alsa] (/showthread.php?tid=753)
MPD error - Failed to open "ALSA default" [alsa] - rongon - 12-11-2018
What does this mean? Now whenever I try to play anything I get this error:
MPD error
Failed to open "ALSA default" [alsa]
Failed to open ALSA device "hw0,0" No
such file or directory
Does that mean the DAC HAT is not working? (Failed to open ALSA device)
Or does that mean the SDcard has lost data? (No such file or directory)
I never had this problem with the other pi with older Boss DAC
RE: MPD error - Failed to open "ALSA default" [alsa] - CallMeMike - 12-11-2018
(12-11-2018, 05:21 AM)rongon Wrote: What does this mean? Now whenever I try to play anything I get this error:
MPD error
Failed to open "ALSA default" [alsa]
Failed to open ALSA device "hw0,0" No
such file or directory
Does that mean the DAC HAT is not working? (Failed to open ALSA device)
Or does that mean the SDcard has lost data? (No such file or directory)
I never had this problem with the other pi with older Boss DAC
Rebuild time...? (before worrying about a non-working HAT)
RE: MPD error - Failed to open "ALSA default" [alsa] - rikardo1979 - 12-11-2018
reselect your DAC under settings an reboot. Should work
RE: MPD error - Failed to open "ALSA default" [alsa] - rongon - 12-12-2018
A combination of...
- shutting down the Pi, and
- removing the DAC HAT from the Pi pcb, and
- reseating the DAC HAT onto the Pi pcb, and
- clearing the web browser cache and history, and
- rebooting the Pi...
seems to have fixed it.
Thanks.
RE: MPD error - Failed to open "ALSA default" [alsa] - rongon - 12-12-2018
Nope. Wrong again.
So now, if I install the DC power jumper on the Boss DAC and power both the Pi and the DAC from the same 5V DC power, the DAC works and music plays.
However...
If I remove the jumper, connect a 5V power supply to the Pi and another 5V power supply to the DAC, the DAC does not work, no music plays, and I get that same error:
MPD error
Failed to open "ALSA default" [alsa]
Failed to open ALSA device "hw0,0" No
such file or directory
I did set the Allo Boss DAC as the i2s device, rebooted, applied MPD settings.
Is there a magic sequence of steps I need to take?
If I want to Post a moOde log --
cat /var/log/moode.log
-- should I do that with the jumper J25 off the Boss DAC and power supplies connected to the Pi and DAC, or can I just power the Pi (and not the DAC) to SSH in and run cat?
Any other diags I should run?
Here's the output from running cat (with J25 jumper installed, one power supply powering both Pi and DAC):
pi@moode:~ $ sudo cat /var/log/moode.log
20181211 202245 worker: - Start
20181211 202245 worker: Successfully daemonized
20181211 202245 worker: Integrity check ok
20181211 202245 worker: Session loaded
20181211 202245 worker: Debug logging (off)
20181211 202245 worker: - Platform
20181211 202247 worker: Host (moode)
20181211 202247 worker: Hdwr (Pi-3B+ 1GB v1.3)
20181211 202247 worker: Arch (armv7l)
20181211 202247 worker: Rasp (9.4)
20181211 202247 worker: Kver (4.14.76-v7+)
20181211 202247 worker: Ktyp (Standard)
20181211 202247 worker: Gov (performance)
20181211 202247 worker: Rel (Moode 4.3 2018-09-27)
20181211 202247 worker: Upd (2018-10-19)
20181211 202247 worker: MPD (0.20.20)
20181211 202247 worker: USB boot enabled
20181211 202247 worker: File system expanded
20181211 202247 worker: HDMI port off
20181211 202247 worker: File check ok
20181211 202247 worker: - Network
20181211 202247 worker: eth0 exists
20181211 202247 worker: eth0 (192.168.0.105)
20181211 202247 worker: wlan0 exists
20181211 202247 worker: wifi country (US)
20181211 202247 worker: wlan0 SSID is blank
20181211 202247 worker: eth0 addr exists, AP mode not started
20181211 202247 worker: wlan0 address not assigned
20181211 202247 worker: - Audio
20181211 202248 worker: ALSA outputs unmuted
20181211 202248 worker: ALSA card number (0)
20181211 202248 worker: Audio out (I2S audio device)
20181211 202248 worker: Audio dev (Allo Boss DAC)
20181211 202248 worker: ALSA mixer name (Digital)
20181211 202248 worker: MPD volume control (disabled)
20181211 202248 worker: Hdwr volume controller exists
20181211 202248 worker: Chip options (Burr Brown PCM5122)
20181211 202248 worker: - Services
20181211 202248 worker: Reset renderer active
20181211 202250 worker: MPD started
20181211 202250 worker: MPD scheduler policy (time-share)
20181211 202250 worker: Configure MPD outputs
20181211 202250 worker: MPD output 1 ALSA default (on)
20181211 202250 worker: MPD output 2 ALSA crossfeed (off)
20181211 202250 worker: MPD output 3 ALSA parametric eq (off)
20181211 202250 worker: MPD output 4 ALSA graphic eq (off)
20181211 202250 worker: MPD output 5 ALSA bluetooth (off)
20181211 202250 worker: MPD crossfade (off)
20181211 202250 worker: - Music sources
20181211 202250 worker: USB sources (none attached)
20181211 202250 worker: NAS sources (none configured)
20181211 202250 worker: - Miscellaneous
20181211 202250 worker: Volume level (0) restored
20181211 202250 worker: Maintenance interval (21600)
20181211 202250 worker: Screen saver activation (Never)
20181211 202250 worker: Watchdog started
20181211 202250 worker: Ready
And here is the output from cat with the DAC's J1 jumper removed and two separate 5V power supplies, one for the Pi and the other for the DAC:
pi@moode:~ $ sudo cat /var/log/moode.log
20181211 212124 worker: - Start
20181211 212124 worker: Successfully daemonized
20181211 212124 worker: Integrity check ok
20181211 212125 worker: Session loaded
20181211 212125 worker: Debug logging (off)
20181211 212125 worker: - Platform
20181211 212126 worker: Host (moode)
20181211 212126 worker: Hdwr (Pi-3B+ 1GB v1.3)
20181211 212126 worker: Arch (armv7l)
20181211 212126 worker: Rasp (9.4)
20181211 212126 worker: Kver (4.14.76-v7+)
20181211 212126 worker: Ktyp (Standard)
20181211 212126 worker: Gov (performance)
20181211 212126 worker: Rel (Moode 4.3 2018-09-27)
20181211 212126 worker: Upd (2018-10-19)
20181211 212126 worker: MPD (0.20.20)
20181211 212126 worker: USB boot enabled
20181211 212126 worker: File system expanded
20181211 212126 worker: HDMI port off
20181211 212127 worker: File check ok
20181211 212127 worker: - Network
20181211 212127 worker: eth0 exists
20181211 212127 worker: eth0 (192.168.0.105)
20181211 212127 worker: wlan0 exists
20181211 212127 worker: wifi country (US)
20181211 212127 worker: wlan0 SSID is blank
20181211 212127 worker: eth0 addr exists, AP mode not started
20181211 212127 worker: wlan0 address not assigned
20181211 212127 worker: - Audio
20181211 212127 worker: ALSA outputs unmuted
20181211 212127 worker: ALSA card number (0)
20181211 212127 worker: Audio out (I2S audio device)
20181211 212127 worker: Audio dev (Allo Boss DAC)
20181211 212127 worker: ALSA mixer name (Digital)
20181211 212127 worker: MPD volume control (disabled)
20181211 212127 worker: Hdwr volume controller exists
20181211 212127 worker: Chip options (Burr Brown PCM5122)
20181211 212127 worker: - Services
20181211 212127 worker: Reset renderer active
20181211 212129 worker: MPD started
20181211 212129 worker: MPD scheduler policy (time-share)
20181211 212129 worker: Configure MPD outputs
20181211 212129 worker: MPD output 1 ALSA default (on)
20181211 212129 worker: MPD output 2 ALSA crossfeed (off)
20181211 212129 worker: MPD output 3 ALSA parametric eq (off)
20181211 212129 worker: MPD output 4 ALSA graphic eq (off)
20181211 212129 worker: MPD output 5 ALSA bluetooth (off)
20181211 212129 worker: MPD crossfade (off)
20181211 212129 worker: - Music sources
20181211 212129 worker: USB sources (none attached)
20181211 212129 worker: NAS sources (none configured)
20181211 212129 worker: - Miscellaneous
20181211 212129 worker: Volume level (0) restored
20181211 212129 worker: Maintenance interval (21600)
20181211 212129 worker: Screen saver activation (Never)
20181211 212129 worker: Watchdog started
20181211 212129 worker: Ready
20181211 212138 worker: Job i2sdevice
20181211 212208 worker: Job mpdcfg
pi@moode:~ $
Is there any info in there that's useful?