[Bug 1203592] [NEW] Keyboard backlight does not work in Samsung Series 9 NP900X4C

[mmalmeida]

Public bug reported:

In Ubuntu 13.04, the keyboard backlight does not work in Samsung Series
9 NP900X4C.

Adding the FN key mappings as described in
https://help.ubuntu.com/community/SamsungSeries9 does show information
in the notification area when pressing the keyboard backlight's + and -
buttons, but:

1) The notification always identifies the backlight as "full max"
2) It has no effect on the backlight - it's always off

When I first installed Ubuntu on this machine (12.10), even though the
fn keys never worked I did have intermitent backlight functionality -
the light sensor would sometimes work and I'd see light in the keyboard.

I dual boot in Windows 8 and backlighting works there, so this is not a
hardware issue.

** Affects: udev (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1203592

Title:
  Keyboard backlight does not work in Samsung Series 9 NP900X4C

Status in “udev” package in Ubuntu:
  New

Bug description:
  In Ubuntu 13.04, the keyboard backlight does not work in Samsung
  Series 9 NP900X4C.

  Adding the FN key mappings as described in
  https://help.ubuntu.com/community/SamsungSeries9 does show information
  in the notification area when pressing the keyboard backlight's + and
  - buttons, but:

  1) The notification always identifies the backlight as "full max"
  2) It has no effect on the backlight - it's always off

  When I first installed Ubuntu on this machine (12.10), even though the
  fn keys never worked I did have intermitent backlight functionality -
  the light sensor would sometimes work and I'd see light in the
  keyboard.

  I dual boot in Windows 8 and backlighting works there, so this is not
  a hardware issue.

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