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OS X - Operating System General OS operation information and support

Forcing a display resolution

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Is it possible to force OS X (10.4.1) to use a display resolution, even if it doesn't show up in the list offered by System Preferences' Displays pane? And, if I screw up and set a resolution too high, is it possible to easily recover?

I have a Mac-flashed Radeon 9250 128 MB connected to a KVM that is in turn connected to a 17" CRT. With my original Rage 128, it properly detected that I can run at 1600 x 1200. With the Radeon, it only thinks I can go up to 1600 x 900, when obviously the hardware is capable of far more.
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FYI, I installed SwitchRes X which seems to work.
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I'm a relative newbie when it comes to whats inside a mac, but have embarked on resurecting an G4 Digital Audio 466 that was due for the scrap heap at my work. I have an ATI 9250 graphics card that I'd like to use in it, but I don't know the first thing about flashing the card! Could you offer any advise?

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