I have a new DELL 7440 laptop with Ubuntu 22.04.03 and I'm using Xorg instead of Wayland. When I connect an external monitor, via Display Port from docking station Dell WD19TB or directly using HDMI cable, after a while the laptop freezes. I'm still able to move the "pointer" but the system becomes unusable and must be switched off. This doesn't happen when using the laptop without connecting the external monitor.
I found the hereafter messages on the syslog file:
Jan 14 11:42:41 grossi-Latitude-7440 kernel: [ 2827.331368] i915 0000:00:02.0: [drm] *ERROR* flip_done timed outJan 14 11:42:41 grossi-Latitude-7440 kernel: [ 2827.331377] i915 0000:00:02.0: [drm] *ERROR* [PLANE:82:plane 1B] commit wait timed outJan 14 11:42:51 grossi-Latitude-7440 kernel: [ 2837.571179] i915 0000:00:02.0: [drm] *ERROR* [CRTC:131:pipe B] flip_done timed outJan 14 11:43:01 grossi-Latitude-7440 kernel: [ 2847.810994] i915 0000:00:02.0: [drm] *ERROR* flip_done timed outJan 14 11:43:01 grossi-Latitude-7440 kernel: [ 2847.811004] i915 0000:00:02.0: [drm] *ERROR* [CRTC:131:pipe B] commit wait timed outJan 14 11:43:11 grossi-Latitude-7440 kernel: [ 2858.050798] i915 0000:00:02.0: [drm] *ERROR* flip_done timed outJan 14 11:43:11 grossi-Latitude-7440 kernel: [ 2858.050809] i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:272:DP-3] commit wait timed outI did a quick search and I guess it could be a kernel bug. Can someone confirm it and point me to the specific bug, so I can be notified when it will be fixed?