[Bug 24532] New: xserver segfault on gamma change with different res cloned displays one disabled

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24532

           Summary: xserver segfault on gamma change with different res
                    cloned displays one disabled
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: lists at andyfurniss.entadsl.com
         QAContact: xorg-team at lists.x.org


RV670 AGP using git drm-next, ddx, mesa, xserver (6 days ago).

Happens with kms or ums.

If X is started with 1280x1024 in xorg.conf monitor will get that but s-video
tv-out will be @ 1024x768 and the displays in clone mode.

I notice that xgamma is disabled at this point.

With this setup I notice that my old metacity will not maximise windows beyond
1024x768 and the game enemy territory will fail to get fullscreen on the
monitor. Other games and apps can get fullscreen on monitor OK.

If I turn off DIN with xrandr to allow full screen for ET I will get a segfault
when it tries to change gamma - I can also recreate with xgamma.

If I startx with both screens at 1024x768, disable DIN and then xrandr monitor
to 1280x1024 the segfault does not occur.

Backtrace attached.


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