How to switch which graphics card is used for video output












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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 and nvidia 390 drivers



[SOLVED]



I went into the NVIDIA X Server Settings and altered the Selection and Configuration and restarted the x server a few times.










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    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 and nvidia 390 drivers



    [SOLVED]



    I went into the NVIDIA X Server Settings and altered the Selection and Configuration and restarted the x server a few times.










    share|improve this question



























      1












      1








      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 and nvidia 390 drivers



      [SOLVED]



      I went into the NVIDIA X Server Settings and altered the Selection and Configuration and restarted the x server a few times.










      share|improve this question
















      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 and nvidia 390 drivers



      [SOLVED]



      I went into the NVIDIA X Server Settings and altered the Selection and Configuration and restarted the x server a few times.







      drivers nvidia display monitor xserver






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      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 2 at 9:48







      NewCTwo

















      asked Dec 27 '18 at 18:37









      NewCTwoNewCTwo

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