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#1 2013-03-24 14:52:08

From: Austria
Registered: 2009-11-02
Posts: 28

[SOLVED] Can't control brightness at Asus X201E

I bought a new Laptop with Ubuntu some days ago. On Ubuntu everything was working well - so I decided to make a fresh Arch install with KDE. Most things work out of the box, but I can't control brightness. Even the fn-button to power off the display works as well...
I tried to put parameters at /etc/default/grub, but nothing happened:

GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=Linux acpi_backlight=vendor"

or with "acpi_osi=Linux acpi_backlight=legacy" and "acpi_osi=!Windows 2012".

Thanks for helping me!


found a solution big_smile

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="

for more infos see Christopher’s Blog.

Last edited by P3808 (2013-03-24 18:52:07)


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