What Linux kernel interfaces does the System76 Gnome Power Management extension use to set CPU governor...












1















Just for a reference, I am speaking about the following System 76 Power Management Gnome extension available on System 76 laptop.



enter image description here



No matter whether I set the power management to "High Performance", "Balanced" or "Battery Life" none of the following Linux CPU freq management control points are affected:




  • /sys/devices/system/cpu/intel_pstate/turbo_pct

  • /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

  • /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

  • /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference


However, when power management is set to "Battery Life" the CPU frequency never goes above 2,100 MHz, while when one of the other two modes is selected, then the CPU frequency can go as high as 4,1000 MHz.










share|improve this question





























    1















    Just for a reference, I am speaking about the following System 76 Power Management Gnome extension available on System 76 laptop.



    enter image description here



    No matter whether I set the power management to "High Performance", "Balanced" or "Battery Life" none of the following Linux CPU freq management control points are affected:




    • /sys/devices/system/cpu/intel_pstate/turbo_pct

    • /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

    • /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

    • /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference


    However, when power management is set to "Battery Life" the CPU frequency never goes above 2,100 MHz, while when one of the other two modes is selected, then the CPU frequency can go as high as 4,1000 MHz.










    share|improve this question



























      1












      1








      1








      Just for a reference, I am speaking about the following System 76 Power Management Gnome extension available on System 76 laptop.



      enter image description here



      No matter whether I set the power management to "High Performance", "Balanced" or "Battery Life" none of the following Linux CPU freq management control points are affected:




      • /sys/devices/system/cpu/intel_pstate/turbo_pct

      • /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

      • /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

      • /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference


      However, when power management is set to "Battery Life" the CPU frequency never goes above 2,100 MHz, while when one of the other two modes is selected, then the CPU frequency can go as high as 4,1000 MHz.










      share|improve this question
















      Just for a reference, I am speaking about the following System 76 Power Management Gnome extension available on System 76 laptop.



      enter image description here



      No matter whether I set the power management to "High Performance", "Balanced" or "Battery Life" none of the following Linux CPU freq management control points are affected:




      • /sys/devices/system/cpu/intel_pstate/turbo_pct

      • /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

      • /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

      • /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference


      However, when power management is set to "Battery Life" the CPU frequency never goes above 2,100 MHz, while when one of the other two modes is selected, then the CPU frequency can go as high as 4,1000 MHz.







      power-management cpufreq






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 5 at 8:35







      Robbo

















      asked Jan 5 at 4:32









      RobboRobbo

      1335




      1335






















          0






          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
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1107087%2fwhat-linux-kernel-interfaces-does-the-system76-gnome-power-management-extension%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          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.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1107087%2fwhat-linux-kernel-interfaces-does-the-system76-gnome-power-management-extension%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