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.
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:
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: