Comment # 9 on bug 1140573 from Jiri Slaby

(In reply to Vincent Untz from comment #8)
> I had the same issue today again, with kernel 5.2.2 :/ See attachment.

It would be best to move this to fdo as it is likely an upstream bug:
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel