4:3 aspect ration on widescreen display
I have a Viewsonic widescreen display (VA2012wb) which has a optimal resolution of 1680x1050. I have been moving it between two systems. One is a Powerspec with a Nvidia graphics adapter and the other a Dell with an ATI graphics adapter. The display works properly on either system when running Windows. But, when running Ubuntu, the display takes on what appears to be a 4:3 aspect ratio in the center with about an inch and a half wide black space down each side.
1) Works right with Windows XP and Windows Vista.
2) Fails when running Ubuntu 7.10, either the desktop edition (live) or the server edition (64bit AMD, installed).
3) Fails on two different computer manufactures and with two different graphic card manufactures.
4) No KVM is involved.
The Viewsonic's on-screen display states the following when running either Windows or Ubuntu:
Horizontal Frequency 65.3 KHz
Vertical Frequency 60.0 Hz
Resolution 1680x1050
However, when running Windows, the Pixel Clock is 146.2 MHz while, when running Ubuntu, the Pixel Clock is 120.1.
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- Ubuntu xorg Edit question
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