I have an issue with my RX 5700 XT, one monitor connected via Displayport. If I leave the xfce display settings to not configure new devices when connected the screen will go blank after 5 minutes for a few seconds before coming back, will never go to sleep. If I enable profiles and to configure new displays it’ll go black and stay black but will never come back on, have to reboot.
journalctl shows the following messages when attempting to reinitialise the screen:
Sep 09 06:40:58 Manjaro kernel: [drm:dpcd_set_source_specific_data [amdgpu]] ERROR Error in DP aux read transaction, not writing source specific data
Sep 09 06:40:58 Manjaro kernel: [drm:retrieve_link_cap [amdgpu]] ERROR retrieve_link_cap: Read dpcd data failed.
The only solution is a full reboot, turning the screen off and on again still doesn’t work