[Bug 28852] New: [KMS] radeon artifacts when switched to graphics after boot

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=28852

           Summary: [KMS] radeon artifacts when switched to graphics after
                    boot
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.38-rc2 (branch airlied/drm-2.6.git/drm-fixes)
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: oldium.pro at seznam.cz
        Regression: Yes


I have running lines on the screen when the radeon driver takes control (see
attached video from system boot). In 2.6.37 it worked fine (some old
drm-radeon-testing branch), but in 2.6.38 drm-fixes it started to appear.

I will attach dmesg output for both 2.6.37 and 2.6.38 with drm.debug=3.

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