Bug 19985

Summary: xrandr --output <DISP1> --same-as <DISP2> doesn't work
Product: xorg Reporter: Sunil Mekathotti <sbmekathotti>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: CLOSED NOTABUG QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: 7.3 (2007.09)   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
glxinfo
none
xorg-log
none
xorg.conf
none
xrandr-verbose-output none

Description Sunil Mekathotti 2009-02-06 03:22:40 UTC 
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===================

sunil@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
Comment 1 Sunil Mekathotti 2009-02-06 03:23:40 UTC 
Created attachment 22635 [details]
glxinfo
Comment 2 Sunil Mekathotti 2009-02-06 03:25:16 UTC 
Created attachment 22636 [details]
xorg-log
Comment 3 Sunil Mekathotti 2009-02-06 03:25:51 UTC 
Created attachment 22637 [details]
xorg.conf
Comment 4 Sunil Mekathotti 2009-02-06 05:10:48 UTC 
The above problem is reported on Ubuntu-8.10-32-Bit.

The Same behavior is observed on openSUSE-11.0-32 Bit also
Comment 5 Alex Deucher 2009-02-06 07:15:21 UTC 
can you attach the output of xrandr --verbose?
Comment 6 Sunil Mekathotti 2009-02-10 06:01:12 UTC 
Created attachment 22747 [details]
xrandr-verbose-output
Comment 7 Alex Deucher 2009-02-10 07:36:41 UTC 
I think --same-as only affects the relative output position, not the mode itself.
Comment 8 Maciej Cencora 2009-05-08 10:06:49 UTC 
Changed product and component to Xorg Drivers/Radeon
Comment 9 Sunil Mekathotti 2009-09-13 23:15:07 UTC 
(In reply to comment #7)
> I think --same-as only affects the relative output position, not the mode
> itself.

Agreed. closing

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