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










share|improve this question









New contributor




NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    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










    share|improve this question









    New contributor




    NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      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










      share|improve this question









      New contributor




      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      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






      share|improve this question









      New contributor




      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited Dec 27 at 18:58





















      New contributor




      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked Dec 27 at 18:37









      NewCTwo

      62




      62




      New contributor




      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      NewCTwo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.



























          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "89"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });






          NewCTwo is a new contributor. Be nice, and check out our Code of Conduct.










          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1104974%2fhow-to-switch-which-graphics-card-is-used-for-video-output%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown






























          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          NewCTwo is a new contributor. Be nice, and check out our Code of Conduct.










          draft saved

          draft discarded


















          NewCTwo is a new contributor. Be nice, and check out our Code of Conduct.













          NewCTwo is a new contributor. Be nice, and check out our Code of Conduct.












          NewCTwo is a new contributor. Be nice, and check out our Code of Conduct.
















          Thanks for contributing an answer to Ask Ubuntu!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1104974%2fhow-to-switch-which-graphics-card-is-used-for-video-output%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Human spaceflight

          Can not write log (Is /dev/pts mounted?) - openpty in Ubuntu-on-Windows?

          張江高科駅