In a HP sleekbook 15 laptop I managed to install NVidia driver and also quick switch graphics is working. When NVidia card is active I can adjust the brightness using keyboard but when intel card is active the adjust is not possible. I have to mention that I have followed next advice
"Edit /usr/share/X11/xorg.conf.d/20-intel.conf as root. Enter the following text:
Section "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection "
but still doesnt work for intel graphic card.
Someone can help? Thank you!
Best Answer
sudo gedit /etc/default/grub
find this line:
and change it to:
and then:
sudo update-grub
That works for my HP ProBook. Here is where i found the solution: http://www.techjail.net/solved-brightness-problem-in-ubuntu-12-04-precise-pangolin.html