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Asus K40IJ


This is a compatibilty guide to running Linux with the Asus K40IJ laptop.

This page is just for discussing using Linux on the Asus K40IJ. For a general discussion about this laptop you can visit the Asus K40IJ page on LapWik.

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For full specifications see the Asus K40IJ specifications page.

NameAsus K40IJ
ProcessorIntel Core2 Duo Processor T6500/T6400 : 2.1 GHz - 2.0 GHz, 800MHz FSB, 2MB On-Die L2 Cache;
Intel Pentium Dual Core Processor T4200 : 2.0 GHz, 800MHz FSB, 1MB On-Die L2 Cache
Intel Celeron Processor T3000/900 : 2.2 GHz - 1.8 GHz, 800MHz FSB, 1MB On-Die L2 Cache
Screen14“ HD (1366×768) LED backlight,Color-Shine (Glare-type),
GraphicsIntel GMA X4500M
RAMUp to 4GB
HDD320GB - 5400rpm
Optical DriveDVD Super Multi
802.11 b/g/n

Linux Compatibility

Optical DriveWorks
SoundWorksKernel update fixed sound issues
Card ReaderWorks


There does not seem to be any sound output from the K40IJ. The hardware is detected but no sound is produced at all.

To get Function keys working, follow the following steps as outlined here.

  • Launch the Terminal and prepare to edit your Grub configuration file.
   $ gksudo gedit /etc/default/grub
  • Add “acpi_osi=Linux acpi_backlight=vendor” such that it reads
   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
  • Save file.
  • Finally update Grub
  $ sudo update-grub2


The major issue with the Asus K40IJ is with the sound which doesn't work at all.
Overall a laptop that is very well supported by Linux.


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Dizelsky, 2011/02/04 19:09

Sound works!

SUSE: cat /etc/modprobe.d/50-sound.conf

options snd-hda-intel model=test
options snd slots=snd-hda-intel
# u1Nb.0BStUO5UoL0:82801I (ICH9 Family) HD Audio Controller
alias snd-card-0 snd-hda-intel

BradW, 2010/09/12 11:30

Ubuntu 10.04 64 bit

I put a new drive in and installed Ubuntu 10.04. Since then I get a random screen flicker. Not sure if it is a driver issue or hardware. Worked flawlessly with 9.10.

wickedcracker, 2010/03/22 15:25

Sound works for me.
But I still have troubles with CPU - it's Intel Celeron M (uname -p: Celeron(R) Dual-Core CPU T3100 @ 1.90GHz). It won't let me scale it with cpufrequtils. It doesn't even identify my cpu with cpufreq-info. I have all cpufreq modules built-in to my kernel, but it still doesn't work. I've read that celerons doesn't support frequency scaling, and p4_clockmod isn't going to help me save power.

palo, 2010/02/18 22:07

hey guys i run on ubuntu 9.10 and sound seems quite ok. just get from repositories pulse audio device chooser, volume controle…i also have alsa mixer…

Aldrian, 2010/01/04 22:26

same with me here about external sound.
I'm using Fedora 11, and I also have given up to make the sound comes out from the on board speaker.
Still don't know what to do.
I think this is because the new sound hardware of Asus K40IJ, no?

bradW, 2009/12/20 03:04

I aquired this asus k40ij from work for a decent deal. It's mine for personal use, so I can do as I please with it.

I've ran ubuntu 64 9.10 on it and it's very stable and I'm quite satisfied. (Other than) some issues with 9.10 … vpnc network manager flakes out. 9.10's removal of hal and no options for gmd, especially the inability for remote login. I ran ubuntu 10.04 a bit but the video kept flaking out (among other things)

The only thing I have had issues with is the external audio and mic. I gave up and just went with a usb head set.

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asus_k40ij.txt · Last modified: 2013/01/07 15:34 by rewarp
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