<3> [86.928204] [drm:intel_pipe_update_start [i915]] *ERROR* PSR idle timed out 0xc4020209, atomic update may fail
<3> [86.931638] [drm:intel_pipe_update_start [i915]] *ERROR* Potential atomic update failure on pipe A
<3> [97.372639] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:45:pipe A] flip_done timed out
This one will be fixed when 'drm/i915: Check PSR errors instead of retrain while PSR is enabled' from https://patchwork.freedesktop.org/series/50843/ is merged.
Patch fixing it was merged.