[Bug 219754] New: When screen blanks and resumes there will be an error: kernel: amdgpu 0000:0b:00.0: [drm] REG_WAIT timeout 1us * 100 tries - dcn32_program_compbuf_size line:138

[bugzilla-daemon at kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219754

            Bug ID: 219754
           Summary: When screen blanks and resumes there will be an error:
                    kernel: amdgpu 0000:0b:00.0: [drm] REG_WAIT timeout
                    1us * 100 tries - dcn32_program_compbuf_size line:138
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: ollilein at unitybox.de
        Regression: No

The bug appears since kernel 6.11.4. Everytime the screen blanks the following
error will be displayed in the journalctl log:

kernel: amdgpu 0000:0b:00.0: [drm] REG_WAIT timeout 1us * 100 tries -
dcn32_program_compbuf_size line:138

When the screen resumes (Not from Standby only when resuming from screen
blanking)the following error appears:

kernel: amdgpu 0000:0b:00.0: [drm] REG_WAIT timeout 1us * 100 tries -
dcn32_program_compbuf_size line:139

I have bisected the Kernel versions and until 6.11.3 the bug doesn't happen,
first with 6.11.4 the bug appears.

I have no Problems with crashes or freezes, it is only this message in the
logs.

At the moment i use kernel 6.13.1 but ia have tested kernel 6.14.0-rc1 where
the bug also appears.

I use a PowerColor Radeon RX 7900 XT Hellhound OC for display.

If other Informations are needed i would happily provide it.

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