[Bug 38322] New: ColorTiling + DualHead (xrandr) + screensaver -> GPU lockup on RV620

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38322

           Summary: ColorTiling + DualHead (xrandr) + screensaver -> GPU
                    lockup on RV620
           Product: xorg
           Version: 7.6
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: Erbureth at gmail.com
         QAContact: xorg-team at lists.x.org


While running KDE 4.6.3 (Compositing enabled) on two monitors (configured with
XRandr), when Goban screensaver starts, the whole graphic system freezes (box
is still SSH-able tough) and only SysRq combo can reboot the machine. 

With single display, everything is fine. 


System: Debian Wheezy/Sid
Kernel: 2.6.38
Xorg: 7.6
xserver: 1.10.2
Driver: radeon 6.14.2 (ColorTiling enabled)
Renderer: Mesa 7.10.2 r600g
Graphic card: Mobility Radeon HD3430

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