High Temperature problem

All Gurus once were Newbies
Forum rules
There are no such things as "stupid" questions. However if you think your question is a bit stupid, then this is the right place for you to post it. Please stick to easy to-the-point questions that you feel people can answer fast. For long and complicated questions prefer the other forums within the support section.
Before you post please read how to get help
Level 1
Level 1
Posts: 21
Joined: Sat Nov 24, 2012 8:38 am

Re: High Temperature problem

Postby deeniel » Sat Dec 01, 2012 4:19 pm

My bad english and my low pc knowledge didnt made me understood all xD so whats the problem with -128° i dont have any video proble, if i keep like this will be there any problem? else how can i i revert this last command then?

User avatar
Level 5
Level 5
Posts: 790
Joined: Fri Feb 26, 2010 10:16 am
Location: Middle of Nowhere

Re: High Temperature problem

Postby bigj231 » Sat Dec 01, 2012 5:01 pm

There isn't a problem, but if you try to monitor your GPU temperature, then it will always read -128°C. I think some mobile GPUs don't have temperature sensors, and yours could be one of them. I think that my 4870X2 always reads -128°C on the second chip.
What I meant by "The chip cannot work if it's -128°C," is that the minimum operating temperature of the GPU is above 0°C. It won't work below that temperature.
The rest of my post was actually the important information. I was just making sure you knew that the temperature sensor on your GPU was not working.

I don't think PowerXpress works with and Intel/ATI system. I know that I could never get it to work correctly with an ATI/ATI system (HD4200/HD5650M). It's been a year since I've used that laptop though since the screen died and the hinge broke.
Take a look at this Ubuntu forums post: http://ubuntuforums.org/showthread.php?t=1974521
You might try installing FGLRX directly from ATI, but be warned, I have broken my system doing it this way: http://wiki.cchtml.com/index.php/Ubuntu_Precise_Installation_Guide
You might take a look at this Ubuntu forums post: http://ubuntuforums.org/showthread.php?t=1974521
I wish you luck. I know exactly how frustrating this is.
Running on a 4-slot toaster @ 60Hz

Level 16
Level 16
Posts: 6703
Joined: Sun Jan 30, 2011 12:38 pm
Location: Utrecht, The Netherlands

Re: High Temperature problem

Postby AlbertP » Sun Dec 02, 2012 6:32 am

OK, so this is a muxed hybrid laptop. AMD has already dropped support for muxed hybrid in their Linux driver long ago. You can however just put this in your /etc/rc.local file, to get the ATI GPU turned off every time you boot:

Code: Select all

echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

Usually only computers with a Radeon HD 4000 series or older GPU used this "muxed" technology.

@bigj231 Intel/ATI or AMD/ATI does not matter, both work in the "muxless" version. About the temperature sensor, that's probably just a driver bug. Any laptop card should have a sensor for fan control.
Registered Linux User #528502
Feel free to correct me if I'm trying to write in Spanish, French or German.

Return to “Newbie Questions”

Who is online

Users browsing this forum: No registered users and 39 guests