http://bugs.freedesktop.org/show_bug.cgi?id=19985

           Summary: xrandr --output <DISP1> --same-as <DISP2> doesn't work
           Product: Mesa
           Version: 7.2
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: sbmekatho...@gmail.com


Details of the X-stack:
----------------------

mesa/drm:           master (git)     2-FEB-2009
mesa/mesa :        7.2                                             
xorg/xserver:        1.5.2                                               
xorg/xf86-video-ati: master(git)      2-FEB-2009                            
xorg/driver/xf86-input-keyboard - 1.3.0                  
xorg/driver/xf86-input-mouse-1.3.0 


Problem:
--------

I am trying to bring back both of my 2 displays(DVI-0, VGA-0) into a common
resolution, as below:

Both DVI-0 and VGA-0 are different resolutions
==============================================

$ xrandr -q
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2048 x 2048
DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm
x 300mm
   1280x1024      60.0*+   75.0     60.0     60.0*  <=====
   1400x1050      60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1     75.0     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     72.8     75.0     60.0     59.9  
   720x400        70.1  
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 430mm x
270mm
   1680x1050      60.0 +   60.0  
   1400x1050      74.8     60.0  
   1280x1024      75.0     60.0     60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1*    75.0     70.1     60.0  <========
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     72.8     75.0     60.0     59.9  
   720x400        70.1  

Now trying to bring back both DVI-0 and VGA-0 into same resolution, as below:
============================================================================

$ xrandr --output VGA-0 --same-as DVI-0
Xlib:  extension "Generic Event Extension" missing on display ":0.0".

========NO EFFECT===================

su...@sunil-desktop:~/testres/oss9/logs$ xrandr -q
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2048 x 2048
DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm
x 300mm
   1280x1024      60.0*+   75.0     60.0     60.0* <===========
   1400x1050      60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1     75.0     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     72.8     75.0     60.0     59.9  
   720x400        70.1  
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 430mm x
270mm
   1680x1050      60.0 +   60.0  
   1400x1050      74.8     60.0  
   1280x1024      75.0     60.0     60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1*    75.0     70.1     60.0  <========NO EFFECT
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     72.8     75.0     60.0     59.9  
   720x400        70.1


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