2

I recently updated from Ubuntu 14 to 16.04 LTS. Since that according to 'coretemp' the temperature reaches 80 to 85°C a few minutes after i started my computer. My GPU is a Nvidia Geforce GT 540M. I had temperatureproblems like that before the update, but using bumblebee and cpufreq made it possible to keep it between 55 and 70°C. As that didn't work anymore after the update i switched to a not propriatery driver, uninstalled bumblebee and installed prime. But somehow this isn't working.. 

$ sudo prime-select intel
Info: the current GL alternatives in use are: ['mesa', 'mesa']
Info: the current EGL alternatives in use are: ['mesa-egl', None]
Error: the installed packages do not support PRIME
Error: intel mode can't be enabled
Kalle Richter
  • 6,519
corbuli
  • 43

3 Answers3

1

Install Nvidia drivers by

sudo apt install nvidia-361

and reboot. If UEFI is used, disable Secure Boot.

To reduce heating you can switch to the integrated adapter by

sudo prime-select intel

then log off or reboot.

Pilot6
  • 92,041
0

Try:

sudo apt-get purge bumblebee* nvidia*
sudo apt-get install nvidia-331 nvidia-settings nvidia-prime prime-indicator

And reboot. It will uninstall any nvidia and bumblebee packages you have and will install older driver with nvidia settings panel and prime indicator. Works for my GT650M. Hope it helps.

EDIT: Turn off web browser and programs that you use, then check top if your computer uses too much CPU in idle. Check Psensor for accurate temperature measurements. If it is overheating in idle (let's say <5% CPU), check whether you are using Intel or nVidia graphics by running glxgears. On Intel you should have around 60FPS, same as your screen refresh rate. nVidia renders much more - my GT650M shows few thousand FPS, so should yours. Also, check this link, where I found first reply working great. Also, when was your exhaust and fan cleaned? I clean them once a year and also change thermal paste.

Good luck, mate.

Community
  • 1
Szczepan
  • 268
0
    top - 14:14:19 up  1:01,  1 user,  load average: 1,17, 1,06, 0,99
    Tasks: 258 total,   1 running, 257 sleeping,   0 stopped,   0 zombie
    %Cpu(s): 11,9 us,  2,5 sy,  0,0 ni, 85,2 id,  0,2 wa,  0,0 hi,  0,2         si,  0,0 st
    KiB Mem :  8024888 total,  4210752 free,  1742944 used, 2071192         buff/cache
    KiB Swap:  8235004 total,  8235004 free,        0 used.  5650252 avail Mem
corbuli
  • 43