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[Bug 882434] [NEW] Cannot change the brightness on Samsung P560 Plavos

 

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It is not possible to change the brightness on my Samsung p560 Laptop.
The OSD shows up when using the brightness keys, but the brightness is not changed. I am not sure which package this problem is in. I can only change the brightness before booting ubuntu.

I have the Intel GMA4500 gpu, and this has been an issue since around 9.04. 
There is some information in this bugreport: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/338182, which describes a different issue. 
And an old bugreport set as wont fix: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/338173
Sadly any nvidia tools will not help.

I currently have a clean install of:

Distributor ID:	Ubuntu
Description:	Ubuntu 11.10
Release:	11.10
Codename:	oneiric

Kernel: 3.0.0-12-generic-pae #20-Ubuntu SMP Fri Oct 7 16:37:17 UTC 2011
i686 i686 i386 GNU/Linux

** Affects: gnome-power-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: p560 samsung
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Cannot change the brightness on Samsung P560 Plavos
https://bugs.launchpad.net/bugs/882434
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