Fix Backlight or Brightness Ubuntu 12.04 Precise

Good morning,

Today i wanna write how to fix Fn key in order to decrease my laptop brightness, if you see my first post about "Fix Backlight or Brightness Kali Linux 1.0.9" you will know basic setiing in grub how we fix this problem. Ok lets do that ...

First i wanna show to my Laptop Spesification :

root@ACER:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
root@ACER:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.2 LTS"
root@ACER:~#

Can you see that i have two Graphic Cards, Intel HD3000 and NVIDIA GEFORCE GT-620M, i never install the driver this two graphic cards. Just follow this simple step. And this works good on my laptop....

Just add this line in /etc/default/grub :

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"

Then update the grub, and restart your Computer. and Violla :)

That's all, if you won't understand please write down in the comentar box below this post. Thanks

CMIIW Correct Me If I'm Wrong ...

Fix Backlight or Brightness Kali Linux 1.0.9

Hi,

Today i will show how to fix Backlight in Kali Linux 1.0.9 kernel 3.14 :

Linux ikhsan 3.14-kali1-686-pae #1 SMP Debian 3.14.5-1kali1 (2014-06-07) i686 GNU/Linux

This linux base in Debian Wheezy 7. And you can view your computer spesification using cat /proc/cpuinfo :

in this case i have 2 Graphic card. NVIDIA GEFORCE GT 620M 1GB and Intel HD 3000. I need to disable one VGA in this case i wanna disabe Intel, to disable this go to /etc/modprobe.d/kali-blacklist.conf

In other case not kali-blacklist.conf but blacklist.conf add this line in this file :
blacklist noveau

Then if you finish save the file.
Then Edit file /etc/default/grub and add this line :
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"

after that udpate grub :

After that reboot your computer. After that test decrease or increase your laptop brightness in this case i using Fn + Right and Left arrow to increase and decrease My Laptop Brightness.

And this working :) Thanks for visiting our website.
CMIIW Correct Me If Im Wrong.