Display: Dell 1907FP (LCD)

PC: Dell Optiplex GX150

Problem: Cannot use 1280 x 1024 resolution (native resolution for this screen), vertical lines appear on screen.

I'm using gns v1.1, and when I boot into the Live CD, it sets the display resolution to 1280 x 1024 @ 75 hz, which should work fine, except it doesn't. 10 vertical lines appear onscreen and won't go away until I change to resolution to 1024x768 @ any refresh rate. This also happens when gNewSense is installed on the computer.

It is not the screen because I have had it running at 1280x1024 just fine under windows.

Video card is built in.  lspci detects it as: "0000:00:02.0 VGA compatible controller: Intel Corporation 82815 CGC [Chipset Graphics Controller] (rev 02)


The gNewSense LiveCD detects my display settings to be 1280x1024 @ 75 hz, but they should be 1280 x 1024 @ 60hz

This is very odd because I have had windows running on exactly the same machine at the LCDs native resolution of 1280x1024@60hz. 

Intel's website claims that this graphic card can output 1280x1024@60hz.

How can I fix this?