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I have windows 7 and ubuntu 12.10 installed.
My laptop specs are
Dell XPS 15
4gb RAM
Nvidia gt540m

I've been searching for hours but can't figure out a solution. I am a complete newbie to ubuntu. I've installed tlp but the only thing I was able to do with it was to know my cpu temperature is 75C. I executed sudo tlp start but there hasn't been any change in temperature.

  • Try PerfectDisk. It might be issues with your hard drive. – Cody Apr 23 '14 at 19:31
  • Those Dell laptops have turbo instructions for the CPU that sometimes cause overheating with sustained use. Even on Windows I sometimes had to use an app called ThrottleStop to prevent it from being used. Perhaps you can check how the CPU is being used somehow? – bitfed Apr 23 '14 at 19:38
  • How do i check that? – abhyudayasrinet Apr 23 '14 at 19:41
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I too use Dell XPS 15 and have suffered from over-heating in past when I used open source nvidia-nouveau (installed from additional drivers).

Problem got solved when I started using bumblebee where you can manually switch between intel graphics and nvidia graphics. Nvidia graphics gives much better performance but is also power expensive which results into overheating. Bumblebee gives you option to use only graphic heavy applications with nvidia graphics thus reducing overheating.

Guide to Install Bumblebee

After installation you can run any application with nvidia graphics by using optirun <application-name> from terminal.

Also you can try indicator-cpufreq which lets you put your profile to conservative, also reduce CPU frequency from applet-icon to prevent overheating when computational load is low.

  • I followed it but I get this : abhyudaya@abhyudaya-Dell-System-XPS-L502X:~/Django/mysite/mysite$ sudo apt-get install bumblebee bumblebee-nvidia virtualgl linux-headers-generic Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package bumblebee E: Unable to locate package bumblebee-nvidia E: Unable to locate package virtualgl – abhyudayasrinet Apr 23 '14 at 19:54
  • did you add bumblebee repository using sudo add-apt-repository ppa:bumblebee/stable and 'sudo apt-get update` before installation? – Back.Slash Apr 23 '14 at 19:57
  • yes I did all the steps – abhyudayasrinet Apr 23 '14 at 19:58
  • Oops! Sorry buddy looks like 12.10 is not supported from ppa:bumblebee/stable. – Back.Slash Apr 23 '14 at 20:03
  • However you can install using source bumblebee-project.org/bumblebee-3.2.1.tar.gz – Back.Slash Apr 23 '14 at 20:04
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First make sure you have Nvidia's own binary driver installed and not the open-source version that comes with Ubuntu (run Additional Drivers)...

Then install Bumblebee in the software centre so you can switch between your build in Intel graphics and Nvidia graphics, otherwise both will be running at the same time and your laptop will overheat and run out of battery quickly...

  • how do i make sure i have the binary driver installed? – abhyudayasrinet Apr 23 '14 at 19:43
  • I followed the instructions here : wiki.ubuntu.com/Bumblebee but i get this error abhyudaya@abhyudaya-Dell-System-XPS-L502X:~/Django/mysite/mysite$ sudo apt-get install bumblebee bumblebee-nvidia virtualgl linux-headers-generic Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package bumblebee E: Unable to locate package bumblebee-nvidia E: Unable to locate package virtualgl – abhyudayasrinet Apr 23 '14 at 19:52
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Also happens to some HP laptops, such as my Probook 4530s. The solution is to check for a BIOS update from Dell.

Go http://www.dell.com/support/drivers/us/en/04/ProductSelector/Select/FamilySelection?CategoryPath=all-products%2Fesuprt_laptop%2Fesuprt_xps_laptop&Family=XPS&DisplayCrumbs=Product%2520Type%40%2CLaptops%40%2CXPS&rquery=na

Select your laptop, then under BIOS, get the latest version.

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I had the same laptop, but I was on Windows and used ThrottleStop to prevent turbo mode from being activated. This stopped overheating during games and other CPU intensive operations.

Check out this question as well as the tag [turbo-boost]

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