[Bug 16180] New: radeon regression with 2.6.35-rc2-00001-g386f40c: black screen after resume

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=16180

           Summary: radeon regression with 2.6.35-rc2-00001-g386f40c:
                    black screen after resume
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: cedric@belbone.be
        Regression: Yes


With the aforementioned kernel version, after a resume the screen stays black.
Everything seems responding (wifi led blinking, reboot, ...).

After reading the logs between this kernel and 2.6.35-rc1-00194-gaef4b9a (known
good), i think the problem is with this patch

drm/radeon/kms: make sure display hw is disabled when suspending

After I did apply the attached patch, the resume seems OK.
Don't know if it's the good solution...

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