Keyboard backlight Ubuntu 18.10 not working












2















I have a problem with the new version of Ubuntu. I used to have Ubuntu 18.04 LTS version, but I decided to change to the normal version and update it to Ubuntu 18.10. Since then I can't turn the keyboard backlight on.



I have already tried to open a terminal and type: xset led 1 ... xset led 32, but it doesn't work. I have also tried to turn it on by pressing Fn+F4 and that shows the picture of the keyboard backlight but without the blue progressbar.



Fn+F4



Does somebody know how I could fix it or what the problem is?










share|improve this question

























  • 've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

    – Kyriakos Loizou
    Oct 23 '18 at 7:57
















2















I have a problem with the new version of Ubuntu. I used to have Ubuntu 18.04 LTS version, but I decided to change to the normal version and update it to Ubuntu 18.10. Since then I can't turn the keyboard backlight on.



I have already tried to open a terminal and type: xset led 1 ... xset led 32, but it doesn't work. I have also tried to turn it on by pressing Fn+F4 and that shows the picture of the keyboard backlight but without the blue progressbar.



Fn+F4



Does somebody know how I could fix it or what the problem is?










share|improve this question

























  • 've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

    – Kyriakos Loizou
    Oct 23 '18 at 7:57














2












2








2


1






I have a problem with the new version of Ubuntu. I used to have Ubuntu 18.04 LTS version, but I decided to change to the normal version and update it to Ubuntu 18.10. Since then I can't turn the keyboard backlight on.



I have already tried to open a terminal and type: xset led 1 ... xset led 32, but it doesn't work. I have also tried to turn it on by pressing Fn+F4 and that shows the picture of the keyboard backlight but without the blue progressbar.



Fn+F4



Does somebody know how I could fix it or what the problem is?










share|improve this question
















I have a problem with the new version of Ubuntu. I used to have Ubuntu 18.04 LTS version, but I decided to change to the normal version and update it to Ubuntu 18.10. Since then I can't turn the keyboard backlight on.



I have already tried to open a terminal and type: xset led 1 ... xset led 32, but it doesn't work. I have also tried to turn it on by pressing Fn+F4 and that shows the picture of the keyboard backlight but without the blue progressbar.



Fn+F4



Does somebody know how I could fix it or what the problem is?







asus 18.10 keyboard-backlight






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Oct 31 '18 at 9:35









Melebius

4,86751939




4,86751939










asked Oct 22 '18 at 10:44









Isaac LacortIsaac Lacort

134




134













  • 've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

    – Kyriakos Loizou
    Oct 23 '18 at 7:57



















  • 've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

    – Kyriakos Loizou
    Oct 23 '18 at 7:57

















've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

– Kyriakos Loizou
Oct 23 '18 at 7:57





've got the same issue on my Asus Zenbook UX410UA. Both Fn+F3 and Fn+F4 toggle shows the on-screen icon as if I'm adjusting the brightness but the actual keyboard backlight stays off. I can set the keyboard light on/off and adjusts the brightness via terminal using the following command, where 0 = off and 1, 2, and 3 are the brightness levels. But would really like to be able to use the Fn+F3 and Fn+F4 as intended. echo 3 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness

– Kyriakos Loizou
Oct 23 '18 at 7:57










4 Answers
4






active

oldest

votes


















3














I was having the same issue on my UX430, to fix it just update your kernel to 4.19. You don't get the on screen display but it does now at least work






share|improve this answer


























  • Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

    – Kyriakos Loizou
    Oct 28 '18 at 18:35





















0














Same issue here on a MacBook Air.
I can control the keyboard backlight by echoing a value into



/sys/class/leds/smc::kbd_backlight/brightness


Therefore, I thought it was not a kernel bug... and 4.19 does not solve the problem for me.






share|improve this answer


























  • 4.19 does not solve the problem.

    – user192692
    Nov 2 '18 at 18:38











  • Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

    – Melebius
    Nov 7 '18 at 9:31





















0














I was able to solve this.



Try browsing the /sys/class/leds/ directory. In my case I found 2 files that pertains to keyboard:



asus::kbd_backlight
asus::kbd_backlight_1


First file has 3 in it but the second has 0, so I set it to 3 as well and viola, it worked.



Now I wonder why did I had 2 files that pertains to keyboard brightness? can somebody point me to the config that reads out the files above so that I can correct which file to point it? TIA.



Note: I'm running 4.18









share|improve this answer

































    0














    In my ZenBook pro UX580 the settings could be found in:



    /sys/class/leds/asus::kbd_backlight


    The file holds single value - 0. Replace it with grater number and you will have keyboard backlight on.






    share|improve this answer























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      4 Answers
      4






      active

      oldest

      votes








      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      3














      I was having the same issue on my UX430, to fix it just update your kernel to 4.19. You don't get the on screen display but it does now at least work






      share|improve this answer


























      • Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

        – Kyriakos Loizou
        Oct 28 '18 at 18:35


















      3














      I was having the same issue on my UX430, to fix it just update your kernel to 4.19. You don't get the on screen display but it does now at least work






      share|improve this answer


























      • Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

        – Kyriakos Loizou
        Oct 28 '18 at 18:35
















      3












      3








      3







      I was having the same issue on my UX430, to fix it just update your kernel to 4.19. You don't get the on screen display but it does now at least work






      share|improve this answer















      I was having the same issue on my UX430, to fix it just update your kernel to 4.19. You don't get the on screen display but it does now at least work







      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited Nov 2 '18 at 14:24

























      answered Oct 24 '18 at 22:44









      James BrayJames Bray

      462




      462













      • Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

        – Kyriakos Loizou
        Oct 28 '18 at 18:35





















      • Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

        – Kyriakos Loizou
        Oct 28 '18 at 18:35



















      Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

      – Kyriakos Loizou
      Oct 28 '18 at 18:35







      Worked for me too! I've reverted back to the 4.18.0-10 and I'll wait for the kernel update via Ubuntu as manually install kernels seems to require disabling secure boot in order to avoid invalid signature error and I don't wish to do that.

      – Kyriakos Loizou
      Oct 28 '18 at 18:35















      0














      Same issue here on a MacBook Air.
      I can control the keyboard backlight by echoing a value into



      /sys/class/leds/smc::kbd_backlight/brightness


      Therefore, I thought it was not a kernel bug... and 4.19 does not solve the problem for me.






      share|improve this answer


























      • 4.19 does not solve the problem.

        – user192692
        Nov 2 '18 at 18:38











      • Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

        – Melebius
        Nov 7 '18 at 9:31


















      0














      Same issue here on a MacBook Air.
      I can control the keyboard backlight by echoing a value into



      /sys/class/leds/smc::kbd_backlight/brightness


      Therefore, I thought it was not a kernel bug... and 4.19 does not solve the problem for me.






      share|improve this answer


























      • 4.19 does not solve the problem.

        – user192692
        Nov 2 '18 at 18:38











      • Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

        – Melebius
        Nov 7 '18 at 9:31
















      0












      0








      0







      Same issue here on a MacBook Air.
      I can control the keyboard backlight by echoing a value into



      /sys/class/leds/smc::kbd_backlight/brightness


      Therefore, I thought it was not a kernel bug... and 4.19 does not solve the problem for me.






      share|improve this answer















      Same issue here on a MacBook Air.
      I can control the keyboard backlight by echoing a value into



      /sys/class/leds/smc::kbd_backlight/brightness


      Therefore, I thought it was not a kernel bug... and 4.19 does not solve the problem for me.







      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited Nov 7 '18 at 9:32









      Melebius

      4,86751939




      4,86751939










      answered Oct 31 '18 at 9:27









      user192692user192692

      1




      1













      • 4.19 does not solve the problem.

        – user192692
        Nov 2 '18 at 18:38











      • Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

        – Melebius
        Nov 7 '18 at 9:31





















      • 4.19 does not solve the problem.

        – user192692
        Nov 2 '18 at 18:38











      • Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

        – Melebius
        Nov 7 '18 at 9:31



















      4.19 does not solve the problem.

      – user192692
      Nov 2 '18 at 18:38





      4.19 does not solve the problem.

      – user192692
      Nov 2 '18 at 18:38













      Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

      – Melebius
      Nov 7 '18 at 9:31







      Please edit your answer to add information and updates, do not post them in comments. I’ve done it this time for you.

      – Melebius
      Nov 7 '18 at 9:31













      0














      I was able to solve this.



      Try browsing the /sys/class/leds/ directory. In my case I found 2 files that pertains to keyboard:



      asus::kbd_backlight
      asus::kbd_backlight_1


      First file has 3 in it but the second has 0, so I set it to 3 as well and viola, it worked.



      Now I wonder why did I had 2 files that pertains to keyboard brightness? can somebody point me to the config that reads out the files above so that I can correct which file to point it? TIA.



      Note: I'm running 4.18









      share|improve this answer






























        0














        I was able to solve this.



        Try browsing the /sys/class/leds/ directory. In my case I found 2 files that pertains to keyboard:



        asus::kbd_backlight
        asus::kbd_backlight_1


        First file has 3 in it but the second has 0, so I set it to 3 as well and viola, it worked.



        Now I wonder why did I had 2 files that pertains to keyboard brightness? can somebody point me to the config that reads out the files above so that I can correct which file to point it? TIA.



        Note: I'm running 4.18









        share|improve this answer




























          0












          0








          0







          I was able to solve this.



          Try browsing the /sys/class/leds/ directory. In my case I found 2 files that pertains to keyboard:



          asus::kbd_backlight
          asus::kbd_backlight_1


          First file has 3 in it but the second has 0, so I set it to 3 as well and viola, it worked.



          Now I wonder why did I had 2 files that pertains to keyboard brightness? can somebody point me to the config that reads out the files above so that I can correct which file to point it? TIA.



          Note: I'm running 4.18









          share|improve this answer















          I was able to solve this.



          Try browsing the /sys/class/leds/ directory. In my case I found 2 files that pertains to keyboard:



          asus::kbd_backlight
          asus::kbd_backlight_1


          First file has 3 in it but the second has 0, so I set it to 3 as well and viola, it worked.



          Now I wonder why did I had 2 files that pertains to keyboard brightness? can somebody point me to the config that reads out the files above so that I can correct which file to point it? TIA.



          Note: I'm running 4.18










          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Feb 10 at 10:39









          Thomas

          3,81581527




          3,81581527










          answered Feb 10 at 3:56









          Clemen CanariaClemen Canaria

          12




          12























              0














              In my ZenBook pro UX580 the settings could be found in:



              /sys/class/leds/asus::kbd_backlight


              The file holds single value - 0. Replace it with grater number and you will have keyboard backlight on.






              share|improve this answer




























                0














                In my ZenBook pro UX580 the settings could be found in:



                /sys/class/leds/asus::kbd_backlight


                The file holds single value - 0. Replace it with grater number and you will have keyboard backlight on.






                share|improve this answer


























                  0












                  0








                  0







                  In my ZenBook pro UX580 the settings could be found in:



                  /sys/class/leds/asus::kbd_backlight


                  The file holds single value - 0. Replace it with grater number and you will have keyboard backlight on.






                  share|improve this answer













                  In my ZenBook pro UX580 the settings could be found in:



                  /sys/class/leds/asus::kbd_backlight


                  The file holds single value - 0. Replace it with grater number and you will have keyboard backlight on.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Feb 27 at 15:22









                  Илия ЧепишевИлия Чепишев

                  1




                  1






























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