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Old 03-28-11, 10:39 AM   #2
NVIDIA Corporation
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Join Date: Aug 2002
Posts: 3,740
Default Re: Restrict X server to only one GPU?

If you're already using the BusID keyword to bind the Device section to a specific GPU, then the NVIDIA driver will only actively be driving that GPU. The other is probed for information, but not actually being used. If you'd like to disable even the probe operation, you can use the ProbeAllGpus NVIDIA X driver option (see the README). The primary console goes blank because the X server switches away from it - this will still happen even if you instruct the NVIDIA X driver to ignore the 8300.
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