How do I get brightness working on a Lenovo IdeaPad Yoga?

Question

I have a Lenovo IdeaPad Yoga. It's been working flawlessly with Windows 8 - 9 hour battery life, awesome touchscreen, 4-second boot times.

So obviously I wanted to try Ubuntu 12.10. Well, I downloaded it and installed it - but I couldn't change the brightness!

These hotkeys work in Windows but not in Ubuntu - and none of the solutions others have proposed in other similar questions with Lenovo laptops have worked.

How can I make my brightness hotkeys work?

I found an answer! It shall be posted in 6 hours, as new users can't post answers for 8 hours after the questions's been asked. — Owen Versteeg, Feb 27 '13 at 19:08

Owen Versteeg · Accepted Answer · 2013-07-27T16:23:50.643

8

FOR 12.10

Okay, I found an answer in this page.

This solved my brightness problems permanently:

sudo gedit /etc/default/grub

You will find this line in the new opened window:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Change it to:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

Save and close the window and type this in the terminal:

sudo update-grub

and reboot.

FOR 13.04

Add the acpi_backlight=vendor to your grub default command line
Run the update-grub command
blacklist the ideapad_laptop by adding "blacklist ideapad_laptop" to your /etc/modprobe.d/blacklist.conf file.
Reboot

edited Jul 27 '13 at 16:23

answered Feb 28 '13 at 00:59

Owen Versteeg

271

1

I had precisely this problem on a Lenovo Thinkpad X1 Carbon under Ubuntu 13.04 and the solution solved it. – Marius Hofert Apr 09 '13 at 22:39
1

Now, on my T430 in Ubuntu 13.04, brightness gets adjusted properly but the brightness level indicator doesn't show the correct value. Anyway... – krlmlr May 23 '13 at 13:38
The FOR 13.04 steps also helped me with making the touchpad of my Yoga 11s work directly after boot, not only after a standy-resume detour under Ubuntu 15.10. – ojdo Apr 26 '16 at 20:22

score 2 · Answer 2 · answered Apr 16 '13 at 10:50

2

I have another solution:

GRUB_CMDLINE_LINUX="acpi_osi=\"!Windows 2012\""

and

sudo update-grub

fixed it for me.

answered Apr 16 '13 at 10:50

cebor

185

Huh, I'll try this when I update to 13.04. Thanks! – Owen Versteeg Apr 16 '13 at 14:12
1

This worked well for me on my ThinkPad T430, and fits in with the bug discussion on the kernel change which caused it. – Matthew Walton May 05 '13 at 21:35

score 0 · Answer 3 · edited Jun 12 '20 at 14:37

0

Another solution for my Lenovo G480:

sudo nano /etc/default/grub
Change the line GRUB_CMDLINE_LINUX="quiet splash" into:

GRUB_CMDLINE_LINUX="quiet splash acpi_osi=Linux"
sudo update-grub
Restart your Linux

This fix should work for another Lenovo models.

edited Jun 12 '20 at 14:37

Community

1

answered Feb 07 '14 at 00:43

Maxwel Leite

2,354

How do I get brightness working on a Lenovo IdeaPad Yoga?

3 Answers3

FOR 12.10

FOR 13.04

Linked