intermittent crashing with modesetting

yay · n00b Joined: 19 Dec 2023 Posts: 4

Hello,
I've been experiencing system crashes for a couple months now, specifically, as far as I've tested, when I use modesetting:

NeddySeagoon · Posted: Thu Dec 12, 2024 3:27 pm Post subject:

It can be several things.
The kernel i915 driver.
The xorg modesetting driver.
Mesa, which is the package doing your acceleration.
That's a big problem space.

Some things to try to narrow it down.
Turn off acceleration completely. You will hate that. If the problem goes away, try a differerent vesion of mesa.
You could just do that anyway.

Then a different kernel.
Lastly, different xorg.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

yay · n00b Joined: 19 Dec 2023 Posts: 4

I've done almost all that was suggested:

The only time that there wasn't a crash was when acceleration was disabled (Again, I assume it wouldn't crash after more than a couple minutes with it being fine).

On a quick sidenote, I was trying to use Hyprland, to see if somehow Wayland would've fixed the issue, and apparently it also crashed overnight. SSH didn't work either, once again.

Now, I'm not sure if it is exactly related, since I can't seem to use the same setup [with Vesktop], for some odd reason.

I'll keep using Hyprland for some time, and see if there are any (meaningful) crash logs.

NeddySeagoon · Posted: Thu Dec 12, 2024 10:11 pm Post subject:

With acceleration disnbled, mesa is doing little or nothing, so mesa is implicated.
Can you disble 2D and 3D acceleration separately?
if so, that's worth trying.

Has a bug been reported at bugs.gentoo.org for the issue?
Its worth looking now but it would be good to narrow it down further before creating a bug.

If there is a live mesa ebuild -9999, it may be worth a try.
That's the commit by commit as it happens version, so it may not build at all and if it does, it may not work.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

yay · n00b Joined: 19 Dec 2023 Posts: 4

yay · n00b Joined: 19 Dec 2023 Posts: 4

alright, after some tinkering over these past days, and a LOT of recompiling (Unrelated, I simply had egregious env files, and I noticed it right after my last comment. And yes, I emerge'd @world with an empty tree, and no, sadly no changes...).

during this, I actually learned how to disable 3D acceleration as requested by NeddySeagoon (by disabling DRI) when reading the ArchWiki article for some possible answer, and, alas, the same thing.

now, I know this doesn't seem like a i915 driver issue, and I have not seen any "GPU Hang" warnings on dmesg, but nonetheless, I still tried setting i915.enable_psr=0, intel_idle.max_cstate=1 and i915.enable_dc=0 (the psr one might be even more unrelated to the issue, but why not? :lol:

).
well, that didn't work either...

I tried running Mesa's tests, and only 1 or 2 failed (running with test-fail-continue, of course), and, from what I've seen, they were failing for unrelated reasons (I'm not exactly sure about this, I might test them later accordingly

).

what other things should I try? other general i915 solutions? or is it a hardware issue?

I did think about the latter and tested my RAM and SATA SSD (memtest86+ and smartmontools, respectively) and neither showed any signs of failure (ran short and long tests with smartmontools just before posting this).

nonetheless, I'm not too hurried about fixing this, but the sooner the better, of course.