[Bug 14007] New: Freezes when turning on VGA-0 in extended desktop mode

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=14007

           Summary: Freezes when turning on VGA-0 in extended desktop mode
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: mblaesing at gmx.de
         QAContact: xorg-team at lists.x.org


Hello,

I noticed, that when I try to activate my VGA head (this is a notebook: RV350
[Mobility Radeon 9600 M10]) my system freezes.

I did a git bisect and got this commit as the first bad commit:

f3d2ec3a5ae61215c792018320158750e7aa937c

The effect I see is:
The server comes up with a picture on both heads (LVDS+VGA, clone mode). The I
try to switch into extended desktop via:

xrandr --output VGA-0 --right-of LVDS --mode 1400x1050

This worked as expected, no I get a frozen screen.

Thanks in advance

Matthias


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