Comment 2 for bug 2017354

Revision history for this message
Pierre Lauber (pilauber) wrote :

1. Without recovery (=verbose kernel) boot, I found a clear problem indicator.
After login sometimes some seconds last before the cursor stuck.
But always very shortly before the cursor stuck for about five seconds, one can see at the
top gnome desktop task bar following:
On the top screen area within the small task bar and up to about the double height of the task bar
below the task bar, random pixels in random colors are written to the video memory.
After that, the system is locked. Last Update on 25th June 2023. It did not change with the last
updates. The phenomenon is reproducible.
It seems something is wrongly overwriting the video memory. Ok, the problem comes with the upgrade,
but, it might refer to frame buffer, X11, gnome or gtk etc.

2. I found a workaround for 1.
Using recovery boot (=verbose kernel boot) and selecting "resume" (to normal (high resolution)
boot) in the appearing pop-up, the problem of 1. does not happen at all and one can work as usual.

3. Because of 2., I was able to proceed and I found another bug: The hotspot does not work. (In 22.04 it worked)
Additional dkms install for my rtl8821cu NIC as in 22.04 (the standard community support) did not
solve.