[Bug 574250] Re: SAMSUNG N150 Laptop : Brightness issue

[Erick John Cuevas]

I am running Ubuntu 12.04 Alpha it seems that the ppa:voria/ppa doesn't
work but "sudo setpci -s 00:02.0 F4.B=50" works fine, it will reset
after reboot.

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Title:
  SAMSUNG N150 Laptop : Brightness issue

Status in “udev” package in Ubuntu:
  Fix Released

Bug description:
  Bug description:
  I have just bought a Samsung N150 laptop, very nice netbook.
  As I am a Ubuntu user since 2004, I directly replace Windows seven with the latest Ubuntu version (Lucid Lynx 10.04).

  I notice a systematic issue about screen brightness :
  - The brightness is full when when laptop start with power supply plugged, otherwise the brightness is half. When i try to adjust the brightness using special keys it doesn't work.
  Up to now, I have found on Ubuntu forum many guys relating the same behavior and i pickup a workaround. I use it until the fix will be available : sudo setpci -s 00:02.0 F4.B=50

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