Hello @meddario, in general, no OpenGL application including libcef (Steam's web component) should be capable of taking down the entire system and this reads like a video driver issue. It may be worthwhile to also mention this issue to your video driver vendor.
You could try using a newer version of mesa from a PPA like oibaf or kisak-mesa and that affects the issue.
Hi Kisak, thank you for the answer, for now I'll report the problem in the Ubuntu bug tracker.
Of the two PPAs, the second (https://launchpad.net/~kisak/+archive/ubuntu/kisak-mesa) is the more "safe" and less bleeding-edge, correct?
That is correct. It should be noted that the Ubuntu package mantainers would only be interested in the non-PPA build of mesa for Ubuntu. If you can reproduce the issue with either of those PPAs, then upstream mesa devs would be more interested in the feedback because mesa 20.2 has reached its end of life.
Ok, I think that for now I'll keep the current (old) version, I reported the bug to Ubuntu's Launchpad and maybe they'll need some additional info. In the future I think that I will upgrade to your PPA.
If it's related to the graphic drivers, I think that this is a regression in Ubuntu, because it only happened this week, I have been using this game under Ubuntu for a while because for some reason it always worked better under Wine/Proton than under Windows (btw, thank you all for Steam On Linux, works really well!).
I'll update this issue if I find out something interesting!
This can be closed, didn't happen again (no mesa changes, everything stock Ubuntu 20.04 with regular updates).
Your system information
Steam client version (build number or date): Mar 23 2021 20:11:07 (could be the previous version, it auto updated)
steam-system-information.txt
Distribution (e.g. Ubuntu): Ubuntu 20.04.2 LTS
Opted into Steam client beta?: [Yes/No] No
Have you checked for system updates?: [Yes/No] Yes
Please describe your issue in as much detail as possible:
Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist
Steps for reproducing this issue:
Other info
Game uses Proton 5.13-6
In the syslog i see messages like:
and
In attachment also the full syslog until the reboot with sysrq REISUB.
syslog.txt
Let me know if some information is missing,
Thanks!