It present in modesetting and in intel driver as well, bug in i915
[34862.967978] i915 0000:00:02.0: GPU recovery timed out, cancelling all in-flight rendering.
[34862.968624] i915 0000:00:02.0: Resetting chip for hang on rcs0
[34769.080002] Asynchronous wait on fence i915:kwin_x11[6512]:6a1d2 timed out (hint:intel_atomic_commit_ready+0x0/0x50 [i915])
[34722.936964] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[34722.937690] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001}
[34722.937736] i915 0000:00:02.0: Resetting chip for hang on rcs0
[34722.939472] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001}
[34722.940196] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001}
[34728.951963] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[34734.263959] Asynchronous wait on fence i915:kwin_x11[6512]:6a1d0 timed out (hint:intel_atomic_commit_ready+0x0/0x50 [i915])
[ 4105.944780] broken atomic modeset userspace detected, disabling atomic
https://gitlab.freedesktop.org/drm/intel/issues/673
It has a patch, it should be applied. (reverting changes it does not have proper fix for 5.4 branch)