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My problem is that my laptop, Dell Inspiron N5110, running ubuntu 12.04, is overheating, and occasionally shuts down voluntarily. The fan is working non-stop.

I know much has been reported/asked/answered about problems similar to mine, but I've been reading and experimenting with solutions suggested for days now, and none of them helped.

My current diagnostic is that:

  1. when not using nvidia-current, the laptop overheats and shuts down very often.
  2. when using nvidia-current, I think the overheating problem gets better, but unity falls back to unity-2d (Xlib: extension "GLX" missing on display ":0.0". Error: GLX is not available on the system), which I dislike.

All the answers I found about the opengl/unity problem involve getting rid of the nvidia drivers.

Other notes:

  1. The fan is working non-stop. AFAICT, this isn't a fan-hardware problem.
  2. As suggested in many places, I'm using pcie_aspm=force in my /etc/default/grub. It doesn't seem to make a difference.
  3. The only way I found to prevent my laptop from shutting down too often, is by using Jupiter, and setting its mode to Performance -> Power Saving. Obviously, this sucks. It stills shuts down occasionally, tough.
  4. I'm currently using ubuntu 12.04 and kernel 3.2.0-40-generic. I had the same problems with ubuntu 11.10 / kernel 3.0.

Additional command output

% lspci| grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev a1)
shx2
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1 Answers1

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Bumblebee Project

Bumblebee aims to provide support for NVIDIA Optimus laptops for GNU/Linux distributions. Using Bumblebee, you can use your NVIDIA card for rendering graphics which will be displayed using the Intel card. 

sudo add-apt-repository ppa:bumblebee/stable

sudo apt-get update

Install Bumblebee using the default proprietary nvidia driver:

sudo apt-get install bumblebee virtualgl linux-headers-generic

Add the following line in /etc/modules 

 sudo gedit /etc/modules
 bbswitch load_state=0

save and exit 

 sudo update-initramfs -u

Reboot Done

How TO USE OPTIMUS CARD

For More Power Saving and Make Laptop Coller

Is there a power saving application similar to Jupiter?

I have Same Model Dell Inspiron N5110 i7 , Intel HD 3000 and Nvidia GeForce GT 525M

Community
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Qasim
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  • dell inspiron specs http://www.dell.com/ae/p/inspiron-15r-n5110/pd – Qasim May 01 '13 at 07:36
  • thanks. I'll try it out shortly. Can you confirm there are no opengl/unity problems? – shx2 May 01 '13 at 11:31
  • the 1st thing after installation i do is to install bumblebee .. – Qasim May 01 '13 at 11:39
  • @shx2 i recommend you is to install Ubuntu 13.04 ..clean installation ... y ? cauzz all key board and touch pad driver are included in it...all FUN keys are working .... – Qasim May 01 '13 at 11:41
  • http://askubuntu.com/questions/287253/reduced-performance-in-bumblebee-after-3-0-to-3-2-update/288517#288517 – Qasim May 01 '13 at 13:39
  • @Qasim I didn't get the idea of bbswitch load_state=0, anyway bumblebee gonna disable the card at boot. isn't it? – Web-E May 02 '13 at 08:41
  • yes........ just copy paste this command > sudo echo bbswitch load_state=0 >> /etc/modules && sudo update-initramfs -u – Qasim May 02 '13 at 09:01