I can also confirm that the suggestion posted by "Pierre Chifflier"
works. Though myself not being a computer geek I had problems
implementing it. Below is the example of how it looks on my xorg.conf
file and this works for me.
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-2"
Option "metamodes" "DFP-0: 1680x1050 +1920+15, DFP-2: 1920x1080
+0+0"
Option "RegistryDwords" "EnableBrightnessControl=1"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Note: this is just an example for those who don't know where the
following line appears
Look above for => Option "RegistryDwords"
"EnableBrightnessControl=1"
Thanks everyone, Special Thanks to "Pierre Chifflier"
Cheers,
Hemant
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-power-manager in Ubuntu.
https://bugs.launchpad.net/bugs/762670
Title:
Laptop brightness on Dell XPS not controllable
Status in “gnome-power-manager” package in Ubuntu:
Confirmed
Bug description:
ERROR: Method "GetBrightness" with signature "" on interface
"org.freedesktop.UPower.KbdBacklight" doesn't exist
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/762670/+subscriptions
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