I had just recently done a clean install of Ubuntu-Mate 15.04 and after
loading the Nvidia driver, again saw this issue. Following the below
instructions seems to have completely fixed it for me. I had previously
tried many other suggestions/recommendations with minimal to no success.
(I have a Lenovo W510 Laptop)
<---
I was able to get my brightness keys working on my Lenovo W530 on Ubuntu 12.04.
These days X automatically configures itself, so creating an xorg.conf
file might make your system inflexible. Instead you can add a section to
a file in /usr/share/X11/xorg.conf.d/ and X will include that section in
the configuration that it automatically generates.
So to get the screen brightness keys working with your Nvidia graphics
card, create a file in the xorg.conf.d directory, e.g:
sudo gedit /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf
Paste the following into the file:
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro K1000M"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
Log out and log back in, or reboot, and your brightness keys should now
work!
--->
These instructions were found here:
https://askubuntu.com/questions/76081/brightness-not-working-after-
installing-nvidia-driver
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/562005
Title:
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
no longer function while using proprietary drivers
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https://bugs.launchpad.net/ubuntu-certification/+bug/562005/+subscriptions
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