Suddenly no video - had to reset PC - dbus-daemon, freedesktop, lightdmamdgpu lines in journal log

I have locked the session of 5.13.5-1-MANJARO with latest XFCE and then when i came back i could not get video output, maybe USB failed, but reconnecting video and USB cables not helped.
I was browsing journalctl --list-boots / journalctl -b 1,2,3 and found some interesting lines, do you have any feedback for this please?

  1. = boot session 1 etc.

i was trying to blindly switch from XFCE to a terminal using Ctrl+Alt+F5 (Alt+F7 is to return to XFCE) and stop networking, term apps (blindly) to reboot so log lines may be related

more readable/wide format here

boot 1) sudden video loss----
srp 08 09:40:47 hn kernel: usb 6-1-port1: Cannot enable. Maybe the USB cable is bad?
srp 08 10:09:41 hn dbus-daemon[1108]: [system] Activating via systemd: service name='org.freedesktop.home1' unit='dbus-org.freedesktop.home1.service' requested by ':1.20627' (uid=0 pid=4123>
srp 08 10:09:41 hn dbus-daemon[1108]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found.
srp 08 10:09:41 hn systemd[4123054]: pam_systemd_home(systemd-user:account): systemd-homed is not available: Unit dbus-org.freedesktop.home1.service not found
srp 08 10:09:41 hn systemd[4123054]: pam_env(systemd-user:session): deprecated reading of user environment enabled
srp 08 10:10:32 hn lightdm[4123131]: gkr-pam: unable to locate daemon control file
srp 08 10:10:32 hn lightdm[4123131]: gkr-pam: stashed password to try later in open session
srp 08 10:10:32 hn lightdm[4123131]: pam_systemd_home(lightdm:account): systemd-homed is not available: Unit dbus-org.freedesktop.home1.service not found.
srp 08 10:10:32 hn systemd[1]: Stopping Session c72 of User lightdm.
srp 08 10:10:32 hn lightdm[4123041]: pam_unix(lightdm-greeter:session): session closed for user lightdm
boot 2) video loss quickly after boot----
srp 08 10:23:17 hn dbus-daemon[2085]: [system] Activating via systemd: service name='org.freedesktop.home1' unit='dbus-org.freedesktop.home1.service' requested by ':1.76' (uid=0 pid=4714 co>
srp 08 10:23:17 hn dbus-daemon[2085]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found.
srp 08 10:23:17 hn login[4714]: pam_systemd_home(login:account): systemd-homed is not available: Unit dbus-org.freedesktop.home1.service not found.
srp 08 10:23:17 hn login[4714]: pam_env(login:session): deprecated reading of user environment enabled
srp 08 10:23:28 hn kernel: pcieport 0000:00:08.1: PME: Spurious native interrupt!
srp 08 10:23:32 hn systemd-logind[2096]: System is rebooting.
srp 08 10:23:33 hn kernel: amdgpu 0000:0a:00.0: amdgpu: pp_od_clk_voltage is not accessible if power_dpm_force_performance_level is not in manual mode!
srp 08 10:23:33 hn kernel: amdgpu 0000:0a:00.0: amdgpu: pp_od_clk_voltage is not accessible if power_dpm_force_performance_level is not in manual mode!
srp 08 10:23:32 hn polkitd[2090]: Unregistered Authentication Agent for unix-process:3975:8206 (system bus name :1.55, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en>
boot 3) no video loss so far-----
srp 08 10:28:32 hn kernel: pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
srp 08 10:28:32 hn kernel: pci 0000:00:00.2: can't derive routing for PCI INT A
srp 08 10:28:32 hn kernel: pci 0000:00:00.2: PCI INT A: not connected

inxi output if needed (passphrase: inxi)

thank you

Have you tried one of the latest or both LTS kernels yet? (5.10 and 5.4 in that order?)

:thinking: