Freeze when moving mouse to edge of screen/ second monitor

18 October 2024, 15:10:29

After a recent update my system freezes when I move the mouse to the top edge of the screen (2nd monitor stacked on top). Update included nvidia-560.35.03-13.

Using nvidia 4060 and integrated amd gpu. Second monitor is not the same size or refresh rate as primary, but that wasn't an issue before.

Any idea how to start troubleshooting this? Maybe downgrade nvidia driver first?

Not sure yet how to make picom work with xfwm4 but I guess I could try that too?

update:
have downgraded nvidia drivers, no joy. everything works fine for about 20 minutes or so then suddenly freeze when cursor moves to top.

update:
tried picom, thought it fixed it, but about 30 min after boot same freeze after moving mouse to top.
no errors at time of crash in any log that i can see (Xorg.0.log,kernel,dmesg,everything)
only other thing i can see from the list of packages updated before this issue, is the kernel.

update:
fresh installed artix xfce4 image (just in case 1 of the many things that comes with community iso caused it). Same issue.

update:
have attached list of packages upgraded before the issue.
have tried downgrading nvidia drivers.
have not yet downgraded kernel
will also try downgrading picom - it was installed when the issue occurred but not in use (using xfwm4).
not sure which other package in that list could cause this (most of them not installed now)...

update [~~fixed~~]:
downgraded picom to 11.2-1, so far no issues after running for ~ 3 hours.
not sure how picom was the culprit because it wasn't running (but was installed) when it happened the first time.
will continue to hold my breath every time i move the cursor top side.

update:
Spoke too soon. Just had another freeze.
Spotted the error: [drm:amdgpu_dm_atomic_check [amdgpu]] *ERROR* [CRTC:79:crtc-0] hw_done or flip_done timed out
which is exactly the same problem as this one.
Downgraded kernel to LTS. (Apparently kernel 6.10 not playing so nice with amd gpu?)
will report back...

update:
LTS kernel did not fix it for me.
This seems to be the issue.

Re: Freeze when moving mouse to edge of screen/ second monitor

Reply #1 – 18 October 2024, 21:55:36

If it happened after an update then it's probably related to that, so downgrade stuff until it works, find the problem package, then set it as an IgnorePkg in /etc/pacman.conf until the problem is fixed:
https://wiki.archlinux.org/title/Downgrading_packages
Of course this may be a temporary annoyance but nothing to require a fresh install. Look in /var/log/pacman to see what was upgraded.
There was a recent similar issue here, you mention trying picom:
https://forum.artixlinux.org/index.php/topic,7365.0.html
But in that case it seemed like the current version of picom was the problem and it needed downgrading, from what that post said.
If you were to provide details of the hardware you are using it might add some useful information if anyone else who was investigating the root cause was to look at this.