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Bug#628089: modifying brightness with xbacklight result in fast anarchic brightness changes

Le 24/09/2011 19:25, Julien Cristau a écrit :
On Fri, May 27, 2011 at 06:12:48 +0000, Adrien Le Guillou wrote:

Package: xbacklight
Version: 1.1.2-1
Severity: grave
Justification: renders package unusable

when using xbacklight to modify brightness (-set, -inc or -dec ) the screen
brightness changes a lot a times and really quickly
(as if xbacklight were searching for the right value)

That's not a bug in xbacklight.  It may be a bug in the samsung
backlight kernel driver though.  Does the same sort of stuff happen if
you change brightness using /sys/class/backlight/samsung/brightness
directly?  Does it still happen with a newer kernel?

Sorry for my late answer,

I tried to change the brightness using /sys/class/backlight/samsung/brightness directly and it works fine, although if I install gnome-power-manager I can change the brightness without any problems. About the kernel : I'm using the linux-image-686-pae package (actual version is 3.0.0-1) should I try with a more recent one? (I've never compile a kernel before). Furthermore it works fine with xbacklight in squeeze with the 2.6.32-5 686 kernel.


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