[Bug 218483] New: Blank screen on Cezanne/Barcelo APU with amdgpu.seamless=1

[bugzilla-daemon@xxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=218483

            Bug ID: 218483
           Summary: Blank screen on Cezanne/Barcelo APU with
                    amdgpu.seamless=1
           Product: Drivers
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx
          Reporter: luya@xxxxxxxxxxxxxxxxx
        Regression: No

Created attachment 305856
  --> https://bugzilla.kernel.org/attachment.cgi?id=305856&action=edit
Boot report

The screen goes blank when enabling "amdgpu.seamless=1" for a seamless boot as
tested on Cezanne/Barcelo APU as found on laptops like Dell Inspiron 14 7425
with the following error:
"Feb 11 13:43:37 kernel: amdgpu 0000:04:00.0: [drm] *ERROR* [CRTC:73:crtc-0]
flip_done timed out"

Tested on kernel 6.7.4-200

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