USB initially works, stops working soon after os start

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I recently updated my OS to 14.04.1.



I have a problem with UBS devices, all USB-ports as well as fingerprint reader (internally connected via USB, I suppose) stop working.



Initially everything works at Grup and some short time after boot.



Then quite soon after boot, at login screen, the USB stops working.



I have added usbcore.autosuspend=-1 to this line in /etc/default/grub



GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"


to disable usb autosuspend, but is does not help.



Nothing seems to help.



I'm using gdm, but I don't know if that is related.



My laptop is HP Envy.










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    up vote
    0
    down vote

    favorite












    I recently updated my OS to 14.04.1.



    I have a problem with UBS devices, all USB-ports as well as fingerprint reader (internally connected via USB, I suppose) stop working.



    Initially everything works at Grup and some short time after boot.



    Then quite soon after boot, at login screen, the USB stops working.



    I have added usbcore.autosuspend=-1 to this line in /etc/default/grub



    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"


    to disable usb autosuspend, but is does not help.



    Nothing seems to help.



    I'm using gdm, but I don't know if that is related.



    My laptop is HP Envy.










    share|improve this question

























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I recently updated my OS to 14.04.1.



      I have a problem with UBS devices, all USB-ports as well as fingerprint reader (internally connected via USB, I suppose) stop working.



      Initially everything works at Grup and some short time after boot.



      Then quite soon after boot, at login screen, the USB stops working.



      I have added usbcore.autosuspend=-1 to this line in /etc/default/grub



      GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"


      to disable usb autosuspend, but is does not help.



      Nothing seems to help.



      I'm using gdm, but I don't know if that is related.



      My laptop is HP Envy.










      share|improve this question















      I recently updated my OS to 14.04.1.



      I have a problem with UBS devices, all USB-ports as well as fingerprint reader (internally connected via USB, I suppose) stop working.



      Initially everything works at Grup and some short time after boot.



      Then quite soon after boot, at login screen, the USB stops working.



      I have added usbcore.autosuspend=-1 to this line in /etc/default/grub



      GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"


      to disable usb autosuspend, but is does not help.



      Nothing seems to help.



      I'm using gdm, but I don't know if that is related.



      My laptop is HP Envy.







      14.04 usb






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Apr 5 at 6:34

























      asked Mar 29 at 8:05









      Tero Lahtinen

      1064




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