Satellite L850: Cannot change display brightness in Ubuntu 12.10

Screen backlight brightness doesn't change in ubuntu 12.10

Hi Alex
Does your unit have Intel-only graphics or does it have AMD or Nvidia graphics too?
Intel only should definitely work.
However, since Toshiba has rearranged the hotkeys, and even changed how the work along with the FN-key, you may need to experiment a bit to find the proper keys / combos.
If your unit has a non-intel video, please try a live version of a distribution with a later kernel than Ubuntu.
Maybe Fedora or Chakra.
Both use very late kernels and drivers may be more recent, supporting more hardware.
Preferably, use a live version so you don't need to change your installed system.
BR Tom

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