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Mint 15 Olivia Can't set screen brightness Dell Inpiron 15R

Posted: Tue Jun 04, 2013 4:35 am
by Enkouyami
When I was using Mint 14 cinnamon 64bit everything was perfect, but when I did a fresh install to Mint 15 Cinnamon 64bit, I lost the ability to set screen brightness on Dell Inpiron 15R.

Re: Mint 15 Olivia Can't set screen brightness Dell Inpiron

Posted: Tue Jun 04, 2013 6:35 am
by Dirk2013
Hi Enkouyami,
maybe this post is helping you, I and some others had a likewise problem on other Laptops:

http://forums.linuxmint.com/viewtopic.php?f=49&t=121202

Re: Mint 15 Olivia Can't set screen brightness Dell Inpiron

Posted: Tue Jun 04, 2013 7:01 am
by den68
Hi Enkouyami,

I had a similar issue.
What I did was to add the following line in /etc/default/grub :

Code: Select all

GRUB_CMDLINE_LINUX="acpi_backlight=vendor"
then

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sudo update-grub
sudo reboot
this solved it for me