You have been subscribed to a public bug:
The brightness of my laptop's screen is not changed at all when using the
Fn-Keys.
Ubuntu displays the notification area with the brightness setting displayed, it
even shows that the brightness value is changed - but the actual brightness of
the screen remains the same at all times!
Laptop: Dell XPS 17, Full-HD 3D display, Nvidea graphics.
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: brightness control screen
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Laptop brightness on Dell XPS not controllable
https://bugs.launchpad.net/bugs/762670
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Bugs, which is subscribed to gnome-power-manager in Ubuntu.
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