Setting resolution of external monitor

[Éric Piel]

Op 20-05-09 09:06, Oliver Block schreef:
> Dear list,
> 
> I have a problem setting up the resolution of my external monitor
> connected to the VGA output of my laptop. The graphics controller is:
> 
> 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility
> X1400
> 
> The laptop display has a native resolution of 1680x1050. The external
> screen as a (maximal) resolution of 1920x1080.
> 
> I would like to be able to change the resolution to 1920x1080 and to see
> just a part of this on the laptop display.
> 
> But xrandr does not let me do this:
> 
> $ xrandr 
> Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1920 x 1080
> VGA_1 connected 1680x1050+0+0 478mm x 269mm
>    1680x1050      60.0*    59.9  
>    1400x1050      74.8     70.0     60.0  
>    1280x1024      75.0     59.9     60.0  
>    1440x900       74.9     60.2     60.0  
>    1280x960       60.0     59.9  
>    1280x800       60.0  
>    1152x864       75.0     74.9  
>    1280x768       60.0  
>    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     66.7     60.0      59.9  
>    720x400        70.1  
> PANEL connected 1680x1050+0+0 331mm x 207mm
>    1680x1050      60.1*+
> TV_SVIDEO disconnected
> DVI-D_1 disconnected
> 

> 
> Can someone explain me why I cannot select 1920x1080 as a resolution?
> Any hints what to do?
>From what I understand you want "panning". I would do it with this command:
xrandr  --output PANEL --mode 1680x1050 --panning 1920x1080

However, it requires xrandr 1.3, I don't know if your driver has already
 support for this new version.

Eric
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