https://bugs.freedesktop.org/show_bug.cgi?id=109955
--- Comment #106 from jeroenimo freedesktop@jeroenimo.nl ---
This is quite a severe bug. I have reasonable stable system with Mint 19.2 (runs hours without a crash uname -a Linux jeroenimo-amd 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
(X)ubuntu 18.04 LTS LTS crashes a lot faster (1 or 2 minutes) 5.0.0.29 kernel
I can reproduce the bug with glmark2 instantly 100% of the times
(https://launchpad.net/glmark2) or sudo apt install glmark2
I'm not very good at debugging but this is what my dmesg looks like when I ssh and run glmark2
[ 6619.587749] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:45:crtc-1] flip_done timed out
And that's it, no more info.