Well, I am not sure. I have never had to use xrandr myself. I have only read about it.
Originally Posted by chome4
What happens if you run:
xrandr --addmode 1280x1024
xrandr --newmode 1280x1024
You will have to try different options with xrandr as per the tutorial I linked to earlier.
xrandr --output LVDS1 --mode 1280x1024
What video card do you have?
You could also try backing up your xorg.conf. Then add the horizontal sync and vertical refresh rates for your monitor, as well as the modeline generated by cvt or gtf to the Monitor section of your xorg.conf. Try something like this:
But replace those refresh rates with the refresh rates for your monitor. And use your output from cvt or gtf to generate the modeline.
Identifier "Configured Monitor"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
# 1280x1024 59.89 Hz (CVT 1.31M4) hsync: 63.67 kHz; pclk: 109.00 MHz
Modeline "1280x1024_60.00" 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync