Bug 211065

Summary: drm:dm_restore_drm_connector_state [amdgpu] *ERROR* Restoring old state failed with -12
Product: Drivers Reporter: Artur Bac (arturbac.ab)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: RESOLVED DUPLICATE    
Severity: normal CC: alexdeucher, arturbac.ab
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 5.10.4, 5.10.5 Subsystem:
Regression: Yes Bisected commit-id:
Attachments: kernel boottime dmesg output with error

Description Artur Bac 2021-01-06 22:16:39 UTC
Created attachment 294539 [details]
kernel boottime dmesg output with error

With kernel 5.10.4, 5.10.5 there is regression with amdgpu driver and 2 monitors.
Only first monitor shows anything under kde plasma and sddm, and console terminal, the second one doesn't display anything after boot.
Up to 5.10.3 everything was fine and 2 monitors.

CPU: AMD Ryzen 9 3900X 12-Core @ 24x 3.8GHz
GPU: AMD Radeon RX 5700 XT (NAVI10, DRM 3.40.0, 5.10.3, LLVM 11.0.0)

In dmesg I see and error 
drm:dm_restore_drm_connector_state [amdgpu]] *ERROR* Restoring old state failed with -12
Comment 1 Alex Deucher 2021-01-06 22:28:18 UTC
likely a duplicate of https://bugzilla.kernel.org/show_bug.cgi?id=211033
Comment 2 Artur Bac 2021-01-06 23:48:32 UTC

*** This bug has been marked as a duplicate of bug 211033 ***