kernel-packages team mailing list archive

[Hannes Hofer <Hannes.Hofer@xxxxxxxxx>]

Hi,

I have the same problem.
there is a workaround although.

add "acpi_osi=" at the and of the kernel boot parameters.

to permanently do this edit /etc/default/grub as root
and add "acpi_osi=" at the end of GRUB_CMDLINE_LINUX_DEFAULT
then run "update-grub" as root

after that brightness and all other hotkeys work
but the ambient light sensor is no longer detected.
But this is not a big problem since there is no standard
ambient light regulation of screen brightness anyway

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https://bugs.launchpad.net/bugs/1348890

Title:
  Asus UX32LN: Brightness keys Fn+F5 and Fn+F6 don't generate evdev
  event

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Hello Community,

  It seems brightness keys don't work with latest Ubuntu 14.04 LTS for
  laptop Asus Zenbook UX32LN.

  sudo dmidecode -s bios-version
  UX32LN.203

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