JD jd1008 at gmail.com
Mon May 14 04:08:04 UTC 2012


On 05/13/2012 09:12 PM, Tim wrote:
> On Sun, 2012-05-13 at 20:23 -0600, reg at dwf.com wrote:
>> Is there some way to FORCE X11 to run at 1280x1024 in Fedora14,
>> independent of any tests it may make of the screen?
> Have you looked into modeline parameters on the kernel line?
>
> I can't offer a canned solution, since I've not tried this, but have
> noticed *that* mentioned before.  It may help you find an answer through
> Google.  The right searchword is half the problem with Googling.
>
These are examples of using xrandr. Perhaps this could help:

Forces to use a 1024x768 mode on an output called VGA:
           xrandr --newmode "1024x768" 63.50     1024 1072 1176 1328  
768 771 775 798 -hsync +vsync
           xrandr --addmode VGA 1024x768
           xrandr --output VGA --mode 1024x768


Enables panning on a 1600x768 desktop while displaying 1024x768 mode on 
an output called VGA:
           xrandr --fb 1600x768 --output VGA --mode 1024x768 --panning 
1600x0

Have  one  small     1280x800 LVDS screen showing a small version of a huge
3200x2000 desktop, and have a big VGA screen display the surrounding of the
mouse at normal size:
xrandr --fb 3200x2000 --output LVDS --scale 2.5x2.5 --output VGA --pos 
0x0 --panning 3200x2000+0+0/3200x2000+0+0/64/64/64/64

Displays     the VGA output in trapezoid shape so that it is keystone 
corrected when the projector is slightly above the screen:
           xrandr --fb 1024x768 --output VGA --transform 
1.24,0.16,-124,0,1.24,0,0,0.000316,1



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