[5.0.7] [drm:hwss_edp_wait_for_hpd_ready [amdgpu]] *ERROR* hwss_edp_wait_for_hpd_ready: wait timed out!
Submitted by Taijian
Assigned to Default DRI bug account
Created attachment 144052
relevant dmesg output
On an Alienware 15R3 with hybrid graphics (Intel/AMD RX470) I get the above error message (inter alia) in dmesg both during boot-up and whenever the dGPU gets woken from pm-suspend. This is not breaking, per se - the dGPU will perform it's duties normally when called upon, but takes a long time to 'go back to sleep' when no longer needed - see the bunch of
failed to send message 148 ret is 0
spam in dmesg. But maybe this has something to do with that?
Attachment 144052, "relevant dmesg output":