Reduce display brightness to zero in ubuntu 18.10












0















I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.



In both DEs, XDG_SESSION_TYPE is x11.



Any one knows why this happens and how I can work around this?






display brightness







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    0















    I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.



    In both DEs, XDG_SESSION_TYPE is x11.



    Any one knows why this happens and how I can work around this?






    display brightness







    share|improve this question



























      0












      0








      0








      I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.



      In both DEs, XDG_SESSION_TYPE is x11.



      Any one knows why this happens and how I can work around this?






      display brightness







      share|improve this question
















      I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.



      In both DEs, XDG_SESSION_TYPE is x11.



      Any one knows why this happens and how I can work around this?






      display brightness




      display brightness






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited yesterday







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      asked yesterday









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      244215






















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          try



          xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05



          You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.



          And if you would like to have it as a brightness decreasing script you can use:




          xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')



          and increasing:




          xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')






          share|improve this answer

























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            try



            xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05



            You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.



            And if you would like to have it as a brightness decreasing script you can use:




            xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')



            and increasing:




            xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')






            share|improve this answer






























              0














              try



              xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05



              You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.



              And if you would like to have it as a brightness decreasing script you can use:




              xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')



              and increasing:




              xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')






              share|improve this answer




























                0












                0








                0







                try



                xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05



                You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.



                And if you would like to have it as a brightness decreasing script you can use:




                xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')



                and increasing:




                xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')






                share|improve this answer















                try



                xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05



                You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.



                And if you would like to have it as a brightness decreasing script you can use:




                xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')



                and increasing:




                xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited yesterday

























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                43025




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