Keyboard backlight Ubuntu 18.10 not working












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

























  • '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
















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

























  • '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














1












1








1


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

4,61551839




4,61551839










asked Oct 22 '18 at 10:44









Isaac LacortIsaac Lacort

84




84













  • '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










3 Answers
3






active

oldest

votes


















2














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










New contributor




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




















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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    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


















    2














    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
















    2












    2








    2







    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

    362




    362













    • 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

    4,61551839




    4,61551839










    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










    New contributor




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

























      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










      New contributor




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























        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










        New contributor




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










        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










        New contributor




        Clemen Canaria 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 answer



        share|improve this answer








        edited 6 mins ago





















        New contributor




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









        answered 14 mins ago









        Clemen CanariaClemen Canaria

        12




        12




        New contributor




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





        New contributor





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






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






























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