[Bug 2267] New: dual head on iBook G4 with Radeon 9200 Mobility M9+ causes laptop panel to flicker

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https://bugs.freedesktop.org/show_bug.cgi?id=2267        
   
           Summary: dual head on iBook G4 with Radeon 9200 Mobility M9+
                    causes laptop panel to flicker
           Product: xorg
           Version: 6.8.2
          Platform: Macintosh
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise@freedesktop.org
        ReportedBy: toojays@toojays.net


X Window System Version 6.8.1.901 (6.8.2 RC 1)
kernel: 2.6.9-gentoo-r1 with benh's iBook sleep patch #4

If I attach a monitor to the VGA-out port, X correctly detects it and sets
itself up for dual-head operation. Bravo. The picture on the external CRT is
fine, but the image on the iBook's panel is unstable; sometimes it wobbles up
and down, and always there is an apparent flickering down the left-hand side.

The image looks the same as how it used to look with older versions of Xorg if
you had UseFBDev=false. But with UseFBDev=false, single head mode works fine.
It's only with a second head attached that the flickering occurs.

I will attach my xorg.conf and log file.        
   
   
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