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Asus N51Vn


This is a compatibility guide to running Linux with the Asus N51Vn laptop.

This page is just for discussing using Linux on the Asus N51Vn. For a general discussion about this laptop you can visit the Asus N51Vn page on LapWik.

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For full specifications see the Asus N51Vn specifications page.

NameAsus N51Vn
ProcessorIntel® Core™2 Duo Processor T9600/P8800/P7550/T6600/T5900 : 2.8 GHz - 2.2 GHz,
Screen15.6“ 1366 x 768 Widescreen
RAMUp to 4GB
HDD250GB to 500GB
Optical DriveDVD+-RW
GraphicsNVIDIA® GeForce® GT240M
Network10/100/1000 Ethernet
Intel® Wireless WiFi Link 5100 ABGN

Linux Compatibility

ProcessorWorksSome kernel versions need thermal.psv=-1
Optical DriveWorks
GraphicsWorksUse the proprietary NVIDIA drivers
Card ReaderWorks
ExpressCard SlotNot Tested
Fingerprint ReaderWorksTested on fedora 20, works out of the box


Ubuntu 10.10 was used with the N51Vn.

Some versions of the Linux kernel will by default throttle the cpu at room temperature. Details on the bug tracker can be found:

If you encounter this problem you can easily fix it by disabling the passive trip point, The simplest way to do this is by adding thermal.psv=-1 to your boot options. It is a good idea to set this option when installing if you think you may encounter this problem, as otherwise the installation process could easily take much longer than usual.
You can also use the instructions given by Zhang Rui in the bug's thread to set the passive trip point to your preferred temperature.


You can enter a summary of how well the Asus N51Vn works with Linux here.


me, 2012/12/02 21:55

Hi all, it looks as if the Linux Kernel Dev's are quitting on debugging this bug.
Kinda sucks but my Asus N52v is getting old anyway I wish I could bring new life to it with LINUX but that really looks like it's not going to happen.
On that thought I also think I'm done buying ASUS products as well, reason being there products jest don't pass the test of time, I own a few Asus products laptops, enthusiast motherboards, LCD's…
Asus and Samsung are on my blacklist now.

Jim, 2012/01/10 13:29

Ubuntu 11.10 too slow using any GUI. Mouse responds fine, but GUI applications pause and take time. System Monitor shows CPU @ or near 100% much of the time, despite being at idle.

Tried Linux Mint 12 (Lisa) along Ubuntu, only Ubuntu booted. Loaded Lisa itself and same issue regarding CPU usage. Maxed out and system crawled.

Firefox was unusable for watching any multimedia applications. Audio and Video choppy. Ad Block Plus did not help. Tried Chromium, and got timeout errors on many web pages.

Command line worked fine. Loaded applications fine.

Loading either OS took hours (at least 4). Both were fresh installs with no OS on the system.

Paul, 2012/02/24 18:08

Somewhere in the linux kernel 2.6.X a bug was introduced that caused n51vn machines to slow down to a crawl. You can see the bug report here

Carles, 2013/11/09 12:31

I'm one of the people who were posting in that bug's thread, if you read it to the end you'll see that it wasn't actually a bug.

It's was just that the numbers provided by the hardware for the temperature trip points are bogus, this means it starts throttling the cpu if it's at any temperature over 0 degrees.

So you can easily fix the issue in three easy ways, t easiest one is setting thermal.psv=-1 as a boot option, this completely disables the passive trip point, bringing the functionality to what it was in previous linux versions. The second one, if you want to use the passive trip point would be to manually change the temperature to something you won't easily encounter in your normal usage. The third one is a bit more involved, it requires a trip to Antarctica during the southern winter, just make sure you never get over 0 degrees and everything should be fine! ; )

TLDR: Booting with thermal.psv=-1 fixes it.

Guillem, 2014/01/06 18:55

Hi Carles,
I do not know how to set thermal.psv=-1

I think it is in a script or a file, but I have not Idea which one. Could you please tell me which?

By the way, I am not going to risk and install a new Kernel of Linux if I know that I am going to have problems. First I would like if it works from a Live session from a USB, but here the problem is exactly the same. How can I have the 100 % of my CPU at my to my disposal if I boot from a Live USB session?

Thank you in advance!

Carles, 2014/01/22 17:38

It's a kernel boot option, how to set it depends on your distribution. On fedora you can change your boot parameters by editing


and then running


. It's probably the same for debian/ubuntu but other distributions may have different loaders and setups, it would be best to check your distribution's documentation or ask for help on whatever support channels they may have.

Yes, you can easily test it on a live session. I have tested this in both ubuntu and fedora, a keypress during boot (I think it's tab for fedora and F2 for ubuntu but I can't recall, you'll see the option on your screen) allows you to set custom boot parameters, just add thermal.psv=-1 to the default parameters and you are set.

Guillem, 2014/02/21 14:11

Hi Carles,

it worked! That's really cool. I was considering to boy a new laptop, but now I can keep working under Linux with the ASUS N51-Vn

Thank you for your support!


Brandon Cook, 2010/03/31 18:43

Both Ubuntu and Backtrack 4 run flawlessly. Both nVIDIA drivers from either ubuntu's repository or the newer one from nvidia's website install and run fine. I have the Intel 5100AGN wireless card and it worked perfect out the box with regular connecting and cracking WEP and WPA passwords.

I had a bunch of issues with my dvd burner.. same one as yours when i first started playing with linux, What i did was flash the burner with about 3 different sets of firmware then eventually went back to the RR09 firmware and got a qtip and cleaned the lens.. and what do you know it works great once again.

rx, 2009/10/01 16:59

I use 9.04 64 bit and 8.04 64 bit

#1 - cannot detect Ethernet. Soultion: use wireless and update kernel
#2 - 8.04 install very slow.

jc, 2009/09/25 22:31

My known issues with ubuntu jaunty 64 bit (asus n51vn-sx019C):

#1 - wi-fi hangs shutdown/restart. Solution: disconnect wi-fi before shutdown.
#2 - nvidia gt 240m only supported by beta driver 190.32. On Logout, shutdown/reboot one gets a fuzzy display.
#3 - HL dvdram gsa t50n cd/dvd drive reads but can't burn (firmware RR09). Workaround: change bios from ide enhanced mode to compatible mode, however, if you have dual boot with vista or windows 7 windows will reclaim.

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asus_n51vn.txt · Last modified: 2013/11/29 11:22 by
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