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Old 07-19-10, 11:56 AM   #1
mrnick
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Join Date: Jul 2010
Posts: 11
Default Refresh rate specified in xorg not applied until nvidia-settings is run

Hello, I have an issues with setting refresh rates.

We have a RHEL5.3 box with a Quadro 4600 running nVidia Driver 195.36.24

One output is connected to an NEC flat panel at 1920x1200 50Hz which is fine.

The other output connects to a DLP projector which we want to run at 1920x1080 @24Hz.

In xorg I specifty a twinview setup and assign the displays as follows:

Code:
Option     "MetaModes" "DFP-0: 1920x1080_24, DFP-1: 1920x1200"
I.e. I am specifically assigning the @24Hz mode to the projector.

When I start X, both screens come up at the requested resolution, but the projector comes up at 50Hz.

If I then run nvidia-settings, suddenly the correct refesh rate is applied and the projector detects 24Hz. I don't have to touch any settings, just starting nvidia-settings is enough.

Anyone any ideas what might be causing this?

I have poked through the X log (verbose mode) and it validates the modes I am trying to set and thinks they are set. xorg file attached.

Cheers
Nick
Attached Files
File Type: txt xorg.conf.txt (2.5 KB, 92 views)
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