Brightness Hot Keys Don’t Work On Lenovo IdeaPad Yoga running Ubuntu 12.10 | How to Fix This Issue

Brightness Hot Keys not working on Lenovo laptops running Ubuntu 12.10 Quantal Quetzal or Ubuntu 12.04 Precise Pangolin is a classic issue.

Watch Free Movies

In this article I will show you how to fix the brighness hot keys issue on Lenovo IdeaPad Yoga permanently.

This worked also on a Lenovo ThinkPad X1 Carbon and Lenovo ThinkPad T430 running Ubuntu.

All you have to do is:

Open /etc/default/grub file in your favourite text editor, with root privileges:

$ gksudo gedit /etc/default/grub

Modify the following line:

To look like this (Add acpi_backlight=vendor in the quotes, after quiet splash):

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

Blacklist “ideapad_laptop” (thanks savagejen) for the tip:

$ sudo sh -c 'echo "blacklist ideapad_laptop" >> /etc/modprobe.d/blacklist.conf'

Update grub, in order to apply the new setting

$ sudo update-grub

This is it. Reboot and Enjoy.

Scroll to Top