[Bug 25741] New: [R600/KMS] external display flickering

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=25741

           Summary: [R600/KMS] external display flickering
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri...@li...
        ReportedBy: kro...@gm...


With kernel 2.6.33-rc1 and KMS enabled, the image on the external display (VGA)
is disported by a kind of ripple effect. This happens as soon fbcon kicks in,
before even starting Xorg.
At boot the external monitor is set to clone the internal display, but even
after starting X and setting to it's native resolution it's still flickering.
Not sure that's relevant: with 2.6.33-rc1 xrandr does not report any EDID for
the LVDS.
I'm attaching kernel and xorg logs, and the output of xrandr.


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