[ale] XF86Config Screens section & Virtual dimensions

[zeb]

Michael D. Hirsch wrote:
> On Thursday 06 March 2003 10:37 am, David S. Jackson wrote:
> 
>>Hi,
>>
>>I'm using XFree 4.2 with a Viewsonic 15G and a GeForce2 MX 400 and
>>nvidia drivers.  All works well, except the virtual screen size is too
>>large for anything smaller than 1280x1024: it stays at 1280x1024, and I
>>want it to shrink to 1024x768 if I choose that mode, or 800x600 if I
>>choose that mode, and so on.  I think the Virtual command is what I want
>>here, but I'm not sure how to set it up.  Here's how it looks now:
>>
>>Section "Screen"
>>Identifier "Screen0"
>>Monitor "Monitor0"
>>DefaultDepth 24
>>...
>>SubSection "Display"
>>Depth 24
>>Modes "1280x1024" "1024x768" "800x600" "640x480"
>>EndSubSection
>>EndSection
>>
>>The XF86Config manpage says I can put a 'Virtual xdim ydim' right after
>>Modes.  But how would I format it so the virtual screen doesn't exceed
>>the size of the viewport?
> 
> 
> I don't think you can make it smaller than the largest mode.  Since you can 
> mode switch on the fly the server needs to account for the largest mode at 
> all times.
> 
> You could setup separate display sections for each resolution, but you'll 
> have to start a fresh X server each time you want a different resolution.
> 
> Michael
> _______________________________________________
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> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
> 

Somewhere in the X documentation are instructions for writing your own 
"modeline".  It's very complicated and potentially dangerous (if you 
overdrive your monitor).  I believe it will allow truly custom settings.


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