X1900XT Supported Resolutions

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X1900XT Supported Resolutions

I have a Mac Pro with the ATI X1900XT. I recently bought a new 24 inch LCD monitor that has a native resolution of 1920x1200. My computer will only show the highest resolution of 1900x1200, so I am not technically using it's native resolution. It doesn't look bad, but it bugs me since I know you should always run an LCD at it's native resolution.

According to the ATI sight, the card supports this resolution, so it must be an Apple driver issue. Anyone else have this issue?

Mac Pro 2 Gig;, Mac OS X (10.4.10)

Posted on Sep 19, 2007 6:50 AM

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Answer 1

The hatter

Level 9

61,031 points

Sep 19, 2007 7:09 AM in response to Tom359

The X1900 supports two full 30" displays.
http://www.apple.com/macpro/graphics.html
http://ati.amd.com/products/radeonx1900/specs.html

Must be a problem with... monitor? unless there is a control panel from ATI or a way to access more resolutions and refresh rate...

My ACD 23-inch (viewable) 1920 x 1200 optimal resolution

Also, Apple uses an OEM version, so it won't be 1:1 with retail. Apple requires an EFI and Apple is known for 'under-clocking' graphics.

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Answer 2

Sep 19, 2007 7:16 AM in response to Tom359

1920 x 1200 60Hz is used by Apple's 23" displays, so the computer is definitely capable of it. Sometime displays send incorrect resolution information to the computer, so you may have to force OSX to use the correct resolution with
switchResX
<http://www.madrau.com>
or DisplayConfigX
<http://www.3dexpress.de>

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