MInimizing power consumption of laptop with intel graphics












2














I am considering to try what is mentioned here - Battery life decreased after upgrade to 11.04 - concerning minimizing power consumption.



For example I see that in my case - i915.i915_enable_rc6=0 by issuing the following command cat /sys/module/i915/parameters/i915_enable_rc6 .



Would it be possible to switch it to 1 after booting?



If yes, how can we do that?










share|improve this question
























  • Have you tried TLP ? Google it and there are many links .
    – E_Angel
    Mar 10 at 12:59
















2














I am considering to try what is mentioned here - Battery life decreased after upgrade to 11.04 - concerning minimizing power consumption.



For example I see that in my case - i915.i915_enable_rc6=0 by issuing the following command cat /sys/module/i915/parameters/i915_enable_rc6 .



Would it be possible to switch it to 1 after booting?



If yes, how can we do that?










share|improve this question
























  • Have you tried TLP ? Google it and there are many links .
    – E_Angel
    Mar 10 at 12:59














2












2








2


1





I am considering to try what is mentioned here - Battery life decreased after upgrade to 11.04 - concerning minimizing power consumption.



For example I see that in my case - i915.i915_enable_rc6=0 by issuing the following command cat /sys/module/i915/parameters/i915_enable_rc6 .



Would it be possible to switch it to 1 after booting?



If yes, how can we do that?










share|improve this question















I am considering to try what is mentioned here - Battery life decreased after upgrade to 11.04 - concerning minimizing power consumption.



For example I see that in my case - i915.i915_enable_rc6=0 by issuing the following command cat /sys/module/i915/parameters/i915_enable_rc6 .



Would it be possible to switch it to 1 after booting?



If yes, how can we do that?







i915






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share|improve this question













share|improve this question




share|improve this question








edited Apr 13 '17 at 12:23









Community

1




1










asked Feb 27 '12 at 19:37









ctpb

1112




1112












  • Have you tried TLP ? Google it and there are many links .
    – E_Angel
    Mar 10 at 12:59


















  • Have you tried TLP ? Google it and there are many links .
    – E_Angel
    Mar 10 at 12:59
















Have you tried TLP ? Google it and there are many links .
– E_Angel
Mar 10 at 12:59




Have you tried TLP ? Google it and there are many links .
– E_Angel
Mar 10 at 12:59










2 Answers
2






active

oldest

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0














You could try something like the following as root:



sudo -i
echo 1 > /sys/module/i915/parameters/i915_enable_rc6





share|improve this answer





























    0














    You can also do:



    sudo modinfo i915 | grep "i915_enable_rc6"


    You would see this:



        parm:           i915_enable_rc6:Enable power-saving render C-state 6. 
    Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6;
    2 = enable deep rc6; 4 = enable deepest rc6).
    For example, 3 would enable rc6 and deep rc6, and 7 would enable everything.
    default: -1 (use per-chip default) (int)


    I think that answers your question : )






    share|improve this answer





















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      2 Answers
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      2 Answers
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      active

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      active

      oldest

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      0














      You could try something like the following as root:



      sudo -i
      echo 1 > /sys/module/i915/parameters/i915_enable_rc6





      share|improve this answer


























        0














        You could try something like the following as root:



        sudo -i
        echo 1 > /sys/module/i915/parameters/i915_enable_rc6





        share|improve this answer
























          0












          0








          0






          You could try something like the following as root:



          sudo -i
          echo 1 > /sys/module/i915/parameters/i915_enable_rc6





          share|improve this answer












          You could try something like the following as root:



          sudo -i
          echo 1 > /sys/module/i915/parameters/i915_enable_rc6






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Feb 27 '12 at 22:58









          mikewhatever

          23.5k76785




          23.5k76785

























              0














              You can also do:



              sudo modinfo i915 | grep "i915_enable_rc6"


              You would see this:



                  parm:           i915_enable_rc6:Enable power-saving render C-state 6. 
              Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6;
              2 = enable deep rc6; 4 = enable deepest rc6).
              For example, 3 would enable rc6 and deep rc6, and 7 would enable everything.
              default: -1 (use per-chip default) (int)


              I think that answers your question : )






              share|improve this answer


























                0














                You can also do:



                sudo modinfo i915 | grep "i915_enable_rc6"


                You would see this:



                    parm:           i915_enable_rc6:Enable power-saving render C-state 6. 
                Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6;
                2 = enable deep rc6; 4 = enable deepest rc6).
                For example, 3 would enable rc6 and deep rc6, and 7 would enable everything.
                default: -1 (use per-chip default) (int)


                I think that answers your question : )






                share|improve this answer
























                  0












                  0








                  0






                  You can also do:



                  sudo modinfo i915 | grep "i915_enable_rc6"


                  You would see this:



                      parm:           i915_enable_rc6:Enable power-saving render C-state 6. 
                  Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6;
                  2 = enable deep rc6; 4 = enable deepest rc6).
                  For example, 3 would enable rc6 and deep rc6, and 7 would enable everything.
                  default: -1 (use per-chip default) (int)


                  I think that answers your question : )






                  share|improve this answer












                  You can also do:



                  sudo modinfo i915 | grep "i915_enable_rc6"


                  You would see this:



                      parm:           i915_enable_rc6:Enable power-saving render C-state 6. 
                  Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6;
                  2 = enable deep rc6; 4 = enable deepest rc6).
                  For example, 3 would enable rc6 and deep rc6, and 7 would enable everything.
                  default: -1 (use per-chip default) (int)


                  I think that answers your question : )







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Mar 15 '13 at 19:35









                  Anonymous

                  1




                  1






























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