i915 0000:00:02.0: [drm:intel_async_flip_check_hw [i915]] [PLANE:31:plane 1A] Modifier does not support async flips
i915 0000:00:02.0: [drm:intel_dump_pipe_config [i915]] [CRTC:51:pipe A] enable: yes [failed]
...
i915 0000:00:02.0: [drm:drm_atomic_check_only [drm]] atomic driver check for 00000000f524c626 failed: -22
It seems that's a kernel bug which occurs with linear buffers (ie. secondary GPUs rendering to full screen). Intel has a fix on the way but it hasn't landed yet:
Thanks. I think the error is originating from:
i915 0000:00:02.0: [drm:intel_ async_flip_ check_hw [i915]] [PLANE:31:plane 1A] Modifier does not support async flips dump_pipe_ config [i915]] [CRTC:51:pipe A] enable: yes [failed] atomic_ check_only [drm]] atomic driver check for 00000000f524c626 failed: -22
i915 0000:00:02.0: [drm:intel_
...
i915 0000:00:02.0: [drm:drm_
It seems that's a kernel bug which occurs with linear buffers (ie. secondary GPUs rendering to full screen). Intel has a fix on the way but it hasn't landed yet:
https://<email address hidden>/