FC3 and Riva128 graphics adapter - resolution problems

[Gain Paolo Mureddu]

Rob MacKay wrote:

> Hi there,
>
> I'm having a problem with my newly installed system, and need some 
> guidance.  Any help or direction would be appreciated.
>
> My system is a PII 350 with riva128 on board.  I've configured Xorg 
> and it's mostly working ok.  My own login is fine once I changed the 
> resolution using preferences>screen resolution.  The signon screen and 
> root login screen, however, are both stuck on 1280X960 and my monitor 
> (Benq 15" flat panel) complains about it.  It shows the screen, but 
> says "out of range" on the screen.  When I got into root login and 
> change the resolution, it stays for that session, but when I log out 
> and back in ... it's changed back to 1280X960 (I want 1024X768).

Edit this entry (as root) in the file /etc/X11/xorg.conf:
Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth    24
        SubSection "Display"
                Viewport   0 0
                Depth     16
                Modes    "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Viewport    0 0
                Depth     24
                Modes     "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

In the above section just erase the entries for the resolution you don't 
want, in this case 1280x960. In this file the entries are read by X from 
left to right, meaning that the first resolution listed is the default 
mode to use, but the others are useable resolutions too. Also to lessen 
a bit the overhead on the card, you may choose a mode of 16 bits of 
depth instead of the default 24.

Hope this helps.

Gian.