https://bugzilla.kernel.org/show_bug.cgi?id=211065

Bug ID: 211065 Summary: drm:dm_restore_drm_connector_state [amdgpu] *ERROR* Restoring old state failed with -12 Product: Drivers Version: 2.5 Kernel Version: 5.10.4, 5.10.5 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: arturbac.ab@gmail.com Regression: No

Created attachment 294539 --> https://bugzilla.kernel.org/attachment.cgi?id=294539&action=edit 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