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i got a problem.

I tried a lot of distributions (ubuntu, lubuntu, xubuntu, kubuntu too) and i've the same problem on everyone of them:

I always have high temperatures caused (i think) by dual GPU system.

Here's my config:

CPU:Amd llano 3510mx GPU1(internal): AMD 6620G 512MB GPU2(External): AMD 66470 1GB DDR3 RAM: 4gb 1333Mhz DDR3

I tried both fglrx and radeon open source drivers with the following results:

Radeon results: 90° Idle - Shutdown after 10 mins caused by high temperatures. Fglrx results: 60-70° Idle - 75 - 80° With gnome 3 animations. If i try to watch a video the system shutdown.

On windows i've 65° with Max performance, youtube video and eclipse running. and 45° on Idle.

So, how can i solve this problem?

PS: I CAN'T shutdown internal gpu from bios...

I've to recompile kernel in any way?

Sorry for my bad english.

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Sounds like the driver or graphics card has an issue with power management in conjunction with bad cooling. You probably want to search for a driver update that fixes power management. I would recommend the closed source drivers, they are often the first to fix cooling related issues. –  LiveWireBT Jul 11 '12 at 11:39
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chk this help.ubuntu.com/community/HybridGraphics –  Web-E Jul 11 '12 at 11:40

2 Answers 2

Overheating can be caused by inadequate ventilation (add an external fan), dirty and blocked air vents (clean thee hardware) and running a lot of programs at the same time. This can effect your battery, lead to shut downs, cause laptop to behave erratically, and eventually your laptop failing.

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Ventilation is good. i said i've -25° on Windows. So Ubuntu(Linux kernel or drivers) are the problem. –  Antonio Ciccia Jul 11 '12 at 11:26

It's all related to graphic card. Check the page that Web-E linked.

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