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Guerrilla Tactics to Force Screen Mode in Ubuntu

Jun 25, 2010, 10:33 (0 Talkback[s])
(Other stories by Michael Reed)

"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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