How to switch which graphics card is used for video output












1














I have two graphics cards: A GTX 1070 Ti and a Quadro K620. I need to use the Quadro for my monitor output so the more powerful 1070 can be devoted to computation. Whenever I plug a monitor into the Quadro, it just stays black, and my main monitor goes black two. I don't want to use dual monitors.



I'm running Ubuntu 18.04










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    I have two graphics cards: A GTX 1070 Ti and a Quadro K620. I need to use the Quadro for my monitor output so the more powerful 1070 can be devoted to computation. Whenever I plug a monitor into the Quadro, it just stays black, and my main monitor goes black two. I don't want to use dual monitors.



    I'm running Ubuntu 18.04










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      I have two graphics cards: A GTX 1070 Ti and a Quadro K620. I need to use the Quadro for my monitor output so the more powerful 1070 can be devoted to computation. Whenever I plug a monitor into the Quadro, it just stays black, and my main monitor goes black two. I don't want to use dual monitors.



      I'm running Ubuntu 18.04










      share|improve this question









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      I have two graphics cards: A GTX 1070 Ti and a Quadro K620. I need to use the Quadro for my monitor output so the more powerful 1070 can be devoted to computation. Whenever I plug a monitor into the Quadro, it just stays black, and my main monitor goes black two. I don't want to use dual monitors.



      I'm running Ubuntu 18.04







      drivers nvidia 18.04 monitor






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      edited Dec 27 at 18:58





















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      asked Dec 27 at 18:37









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