harshar.net

Ref:
http://www.linuxquestions.org/questions/showthread.php?t=331153

Most common solution, assuming you’re using the right driver, etc., is this one, which I copied from one of many threads here that lay it out.

vim /etc/X11/XF86Config-4

Find the section that looks like this:


Section "Screen"
Identifier "Default Screen"
Device "NVIDIA Corporation NV18 [GeForce4 MX - nForce GPU]"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "800x600" "640x480"
EndSubSection
EndSection


and make it look like this:


Section "Screen"
Identifier "Default Screen"
Device "NVIDIA Corporation NV18 [GeForce4 MX - nForce GPU]"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection


commands:
dexconf – Stands for Debian X Configuration Tool
dpkg-reconfigure xserver-xfree86

Use xwmconfig

http://www.linuxquestions.org/questions/archive/8/2001/11/3/8699