I'd like to dual boot my HP Pavilion 15 P257NL with Windows 7.

I tried installing Ubuntu 14.04 LTS, but it was getting very hot (only on Ubuntu, it stayed cool in Windows 7). I tried Googling, and I found bumblebee and some other programs such as thermaid but they didn't solve the problem. So I updated to Ubuntu 15.10. The heating problem was still there, although reduced a bit. Then, I tried another distro (Fedora 23) but it didn't help at all. I read online that this is likely to be caused by the dual video card, so here's my PC configuration:

Intel Core i7-5500U
Intel HD Graphics 5500
NVIDIA GeForce 840M

I know that there are a lot of questions about this problem but none of the answers solved my problem. I've been struggling with this for three weeks.


Here are some screenshots with psensor.

This is the computer just started and doing nothing: enter image description here

Here's what happens as soon as I open Firefox and play a video on Youtube: enter image description here

On Windows I get an average temperature of 40°C while in a Skype call with Youtube and lots of open tabs on Chrome, so I don't get how the temperature can be so high on Ubuntu. Needless to say, the fan is almost always on.


As Android Dev asked me, here are the Nvidia X Server settings screenshots after playing a video on Youtube for about 3 minutes:

enter image description here

enter image description here


I did a stress test with Prime95 but I had to kill it after only 5 minutes because the temperature was rising very quickly. Here's the temperatures after that:

enter image description here


{FYI - I'll clean this up after we figure out what exactly is going on}

Please install Psesnor

1) sudo apt-get update

2) sudo apt-get install psensor

Please report back with the temperatures it shows.

  • Thank you for your reply. I added the screenshots. If you need more details, feel free to ask. Thank you again. – Aurasphere Mar 14 '16 at 21:38
  • @Aurasphere - From the spec sheets, you have an Intel Core i7-5500U, correct? Also, are you using the default open-source graphics driver, or are you using the proprietary Nvidia driver? – You'reAGitForNotUsingGit Mar 14 '16 at 22:12
  • Yes, that's my processor and I'm using Nvidia proprietary driver. – Aurasphere Mar 14 '16 at 22:15
  • @Aurasphere - Please take screenshots of two pages in the Nvidia Settings; see my above for the correct ones. – You'reAGitForNotUsingGit Mar 14 '16 at 22:23
  • I've updated the question with the screenshots you asked. Thank you for the help. – Aurasphere Mar 31 '16 at 19:29

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