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How to disable Optimus?

post #1 of 4
Thread Starter 
I have a Dell XPS L501X which uses Optimus technology to switch between its Intel HD graphics and Nvidia GT420M. However, i'm trying to play a game and it seems that it doesn't switch as I get an unsupported DirectX error related to Intel_HD.

Is there a way to force it to run on my GT420M?
post #2 of 4
Did you add the game's executable into nVidia Control Panel and designate it to use your GT420M (under Manage 3D Settings)? You can also try and set it up so that nVidia Control Panel uses only your GT420M under Manage 3D Settings>Global Settings>Preferred GPU.

Or you can also check bios and see if you can disable Intel HD Graphics.
    
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post #3 of 4
Quote:
Originally Posted by infomancer;14305127 
Or you can also check bios and see if you can disable Intel HD Graphics.

If it runs like MSI FR700, then u can't even see the nvidia chip in the bios.
post #4 of 4
Thread Starter 
Quote:
Originally Posted by infomancer;14305127 
Did you add the game's executable into nVidia Control Panel and designate it to use your GT420M (under Manage 3D Settings)? You can also try and set it up so that nVidia Control Panel uses only your GT420M under Manage 3D Settings>Global Settings>Preferred GPU.

Or you can also check bios and see if you can disable Intel HD Graphics.

Yeah, that worked. I didn't see the delegation bit, I managed to force the .exe to use my Nvidia chip smile.gif
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