Dear Maintainer,
i can confirm the problem.
All of our notebooks with integrated AMD graphics (CPU: AMD Ryzen 7 PRO
4750U with Radeon Graphics) are affected and don't boot anymore.
During boot the following error-messages appear:
[drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR*
[CRTC:62:crtc-0] flip_done timed out.
[drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR*
[CRTC:62:crtc-0] flip_done timed out.
[drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR*
[PLANE:52:plane-3] flip_done timed out.
5.10.0-18 boots without problems.
Best Regards,
Arndt Kaiser
