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



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?

Cheers,
Julien



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