Guerrilla Tactics to Force Screen Mode in Ubuntu

“Readers of my previous posts will know about the bad luck I’ve
had when it comes to getting the screen setup on Linux,
particularly with Ubuntu Linux. It’s a particularly annoying
problem when the hardware detection goes wrong and one is presented
with a list of unsuitable screen modes. What follows is a way of
using XRandR (X Rotate and Resize) to brute force a desired screen
mode for X when conventional routes have failed.

“Once you’ve added the new mode and tested that it works, you
can add it to your xorg.conf or to the startup script of your login
manager. Most of what follows assumes that you are using Ubuntu
Linux, but it should work just as well with all but the most
unusual distributions.

“If you’re having a problem whereby your monitor immediately
goes blank and reports that the incoming signal is out of range
when X starts, it might be worth attempting to the change the
screen mode…”

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