[Bug 206393] New: amdgpu: garbled screen after resume

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=206393

            Bug ID: 206393
           Summary: amdgpu: garbled screen after resume
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.5.1-arch1, 5.5-arch1
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: bjo at nord-west.org
        Regression: No

Created attachment 287081
  --> https://bugzilla.kernel.org/attachment.cgi?id=287081&action=edit
garbled screen

On a Thinkpad A275 with a Radeon R5/R6/R7 (verbose lspci attached) the screen
is garbled after resume. First a black screen appears and then more and more
white pixels appear from the border to the middle of the screen.

Restarting the X-session via SSH does not help, the VTs are also inaccessible.

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