Open the terminal and follow the steps listed below:
1)sudo touch /usr/share/X11/xorg.conf.d/20-intel.conf
2)sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf
3)Type the following lines
Section "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection
4)Save the file
5)Log out and then login
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1502630
Title:
Screen brightness cannot be changed
Status in linux package in Ubuntu:
Incomplete
Bug description:
The screen brightness cannot be changed via the shortcut keys provided
nor through the system setting menu.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1502630/+subscriptions
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