Re: How do you change the resolution in gnome?

[Alan LaViolette <alan globalfoo net>]

This would make a good app for gnome maybe.  I small program that allows 
the user to select a resolution and even color depth.  I know that for 
someone who just wants to change the resolution it can be hard to 
understand the XF86Config file.  Does X provide any way to get a list of 
the supported resolutions that can be switched to by the Ctl-Alt-+ 
Ctl-Alt--? And does X have a way to change the resolution with an API 
call?  I do not know the X API, but could someone point me at a good 
webpage or book to learn this kind of thing.


Maybe this application could expand into a large XF86 config application 
for gnome.

Alan LaViolette

Lionel Lecoq wrote:

> This is an X question...
> If you have more than one resolution in your config file (/etc/X11/XF86Config if you are using
> 3.3.6 or /etc/X11/XF86Config-4 if you are using 4.0.1) then you can toggle between resolutions by
> pressing Ctrl Alt numeric pad + (increase) and Ctrl Alt numeric pad - (decrease)
> If you have only one resolution then hack the file corresponding to your X version:
> version 4 (XF86Config-4) you would find the screen section and adapt the following lines
> Section "Screen"
> 	Identifier "Screen0"
> 	Device "my graphic card" # the identifier of your device
> 	Monitor "my monitor" # the identifier of your monitor
> 	DefaultDepth 16
> 	Subsection "Display"
> 		Depth 16
> 		Modes "800x600" # or whatever resolution you want and your card can give you...
> 	EndSubSection
> EndSection
>
> The screen section for 3.3.6 is pretty similar you can adapt the example without problem... 
>
> Note: if your card was not recognised and you are using the generic VGA device then post on
> newbie XFree86 org specifying card, monitor and posting your XF86Config resp XF86Config-4
> Lionel
>
> --- tim chau <timtchau yahoo com> wrote:
>
> > Please help. I want to change my resolution from 640x480 to 800x600. I am
> > currently running RedHat 7.0. Thank you.
> >
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