[PROBLEM] Unreachable SSH and HDMI black screen after loading OS.

[Pavel Frolov]

I catched the moment when the system is disconnected by run `watch -n1 date` in ssh terminal, and last date I see is date of disconnection.

frolov-media: Wed Jun  1 21:03:53 2022

syslog for this second:

Code:

Jun  1 21:03:48 frolov-media systemd[686]: Startup finished in 771ms.
Jun  1 21:03:50 frolov-media dhcpcd[537]: wlan0: no IPv6 Routers available
Jun  1 21:03:52 frolov-media systemd[1]: Reloading.
Jun  1 21:03:53 frolov-media dhcpcd[537]: received SIGTERM, stopping
Jun  1 21:03:53 frolov-media dhcpcd[537]: wlan0: removing interface
Jun  1 21:03:53 frolov-media systemd[1]: Stopping DHCP Client Daemon...
Jun  1 21:03:53 frolov-media dhcpcd[537]: eth0: removing interface
Jun  1 21:03:53 frolov-media dhcpcd[537]: dhcpcd exited

then:

Code:

Jun  1 21:03:54 frolov-media avahi-daemon[395]: Interface wlan0.IPv6 no longer relevant for mDNS.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::e259:f769:123a:dbc2.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.12.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Withdrawing address record for fe80::e259:f769:123a:dbc2 on wlan0.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Withdrawing address record for 192.168.1.12 on wlan0.
Jun  1 21:03:54 frolov-media systemd[1]: dhcpcd.service: Succeeded.
Jun  1 21:03:54 frolov-media systemd[1]: Stopped DHCP Client Daemon.
Jun  1 21:03:54 frolov-media systemd[1]: Starting DHCP Client Daemon...
Jun  1 21:03:54 frolov-media dhcpcd[952]: dev: loaded udev
Jun  1 21:03:54 frolov-media dhcpcd[952]: wlan0: connected to Access Point `'
Jun  1 21:03:54 frolov-media dhcpcd[952]: eth0: waiting for carrier
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Joining mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.12.
Jun  1 21:03:54 frolov-media kernel: [   31.279640] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
Jun  1 21:03:54 frolov-media avahi-daemon[395]: New relevant interface wlan0.IPv4 for mDNS.
Jun  1 21:03:54 frolov-media avahi-daemon[395]: Registering new address record for 192.168.1.12 on wlan0.IPv4.
Jun  1 21:03:54 frolov-media dhcpcd[952]: wlan0: waiting for carrier
Jun  1 21:03:56 frolov-media kernel: [   33.770172] cam-dummy-reg: disabling
Jun  1 21:04:03 frolov-media systemd[1]: systemd-fsckd.service: Succeeded.

Who can send TERM signal to DHCP?

Jun  1 21:03:53 frolov-media dhcpcd[537]: received SIGTERM, stopping