Comment 23 for bug 1960018

I just installed, Kernel 5.13.30 same problem.

System accepts user password but screen never initialises, just flashes from black to white noise and back.

I have Attached output of running " journalctl --no-pager -b-1 "

Following extracts show progress till "gnome shell looses connection to wayland"

Extract:

Feb 26 09:34:42 lenou2004 kernel: Linux version 5.13.0-30-generic

...

Feb 26 09:34:46 lenou2004 systemd[1]: Reached target Login Prompts.
Feb 26 09:34:46 lenou2004 systemd[1]: Starting Detect the available GPUs and deal with any system changes...
Feb 26 09:34:46 lenou2004 kernel: irq 45: nobody cared (try booting with the "irqpoll" option)
Feb 26 09:34:46 lenou2004 kernel: CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G OE 5.13.0-30-generic #33~20.04.1-Ubuntu
Feb 26 09:34:46 lenou2004 kernel: Hardware name: LENOVO 81MT/LNVNB161216, BIOS 8ZCN23WW(V2.02) 05/09/2019
Feb 26 09:34:46 lenou2004 kernel: Workqueue: pm pm_runtime_work
Feb 26 09:34:46 lenou2004 kernel: Call Trace:
Feb 26 09:34:46 lenou2004 kernel: <IRQ>
Feb 26 09:34:46 lenou2004 kernel: dump_stack+0x7d/0x9c

...
Feb 26 09:35:05 lenou2004 systemd[1152]: Reached target Main User Target.
Feb 26 09:35:05 lenou2004 systemd[1152]: Startup finished in 11.699s.

...

Feb 26 09:35:13 lenou2004 gdm-password][1829]: pam_unix(gdm-password:session): session opened for user christian by (uid=0)

...

Feb 26 09:35:20 lenou2004 gnome-shell[1266]: Failed to set CRTC gamma: drmModeCrtcSetGamma on CRTC 45 failed: Permission denied

...
Feb 26 09:35:21 lenou2004 colord[843]: failed to get session [pid 2234]: No data available
Feb 26 09:35:21 lenou2004 gnome-shell[1266]: Failed to set CRTC gamma: drmModeCrtcSetGamma on CRTC 45 failed: Permission denied
Feb 26 09:35:24 lenou2004 gnome-shell[1266]: Connection to xwayland lost
Feb 26 09:35:24 lenou2004 /usr/lib/gdm3/gdm-wayland-session[1178]: dbus-daemon[1178]: [session uid=125 pid=1178] Activating service name='org.freedesktop.systemd1' requested by ':1.12' (uid=125 pid=1665 comm="/usr/libexec/gsd-sharing " label="unconfined")
Feb 26 09:35:24 lenou2004 gdm-launch-environment][1142]: pam_unix(gdm-launch-environment:session): session closed for user gdm