Comment 126 for bug 1872001

@arighi and @kleber-souza the issue persists in the test kernel.

i915 error log attached.

#uname -a
Linux spore 5.3.0-52-generic #46+lp1861395v1 SMP Tue May 5 16:19:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

#dmesg
[ 166.187536] i915 0000:00:02.0: GPU HANG: ecode 11:1:0xfffffffe, in Xorg [1081], hang on rcs0
[ 166.188564] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 169.281006] Asynchronous wait on fence i915:cinnamon[1449]:d4e timed out (hint:intel_atomic_commit_ready+0x0/0x58 [i915])
[ 174.178202] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 182.178161] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0

If it helps rule out anything, I've observed the issue as far back as 5.3.0-19, and the mesa folks have been chasing it since December 2019:
https://gitlab.freedesktop.org/mesa/mesa/issues/2026

I'm able to reproduce this pretty reliably by generating a lot of text in either gnome terminal or a Jetbrains IDE and scrolling up and down through it.

The workaround in #82 helps with Jetbrains, and oibaf's ppa's mesa with KMS seems to make gnome terminal happy.

Removing either lets me test this out. Still happy to test any proposed kernels :)