Fresh Ubuntu 18.04 Overheating and Battery Problem

[canyuva]

I bought a new laptop : HP Pavilion 15 CB001NT.

Specifications :

i7 7700hq - 16 gb ram - gtx 1050 - 1 tb hdd & 256 gb ssd

I installed Ubuntu 18.04 along side Windows 10 (SSD). Also I installed latest nvidia driver (nvidia-396). But the machine is too hot and battery drains fastly. I looked htop, CPU and Memory are working fine. The machine is new and ubuntu is fresh installed.

So where is the problem? What should I do? Thanks.

[WAWood]

@canyuva

HP only warranties their PCs for usage with the OS that comes preinstalled.  IF you replace that or add a different OS, then you assume full responsibility for maintaining that other OS -- as HP then provides  assistance only on Redhat and then only to commercial customers.
 
Your best bet for Linux support, since HP does not provide Linux drivers, is to contact the support forum for the Linux distro you are trying to install   -- in this case, the Ubuntu Forums:  http://ubuntuforums.org/
 
Folks there have experience using HP machines with Linux and know a lot about driver sources and installation issues.

[gfagan]

Hi canyuva, 

On a laptop, power management is normally accomplished by using the integrated Intel graphics whenever possible, and running the hot, power-hungry discrete nvidia only when necessary. On windows, this is accomplished via a whitelist of all the software - mostly games - that should turn on the nvidia card. 

With ubuntu, you have a choice between nvidia-prime and bumblebee. Ubuntu's not my distro (I use openSUSE), but I think the default installation is nvidia-prime along with the driver (you can check in your package manager that nvidia-prime is installed). With nvidia-prime, you can switch between the two graphics cards with command in terminal "prime-select intel" or "prime-select nvidia" - or you can do the same through the nvidia GUI in menu under system. In either case, you then have to reboot for the change to take effect. If booted with nvidia active, you will run hot and gobble power, even if your computer is idle. 

The alternative is bumblebee, which makes the nvidia work more like it does under windows, with the intel running by default. There's no whitelist, but you can make a program use nvidia with the command "optirun <program-name>" and edit the launchers in your menu accordingly. For instance, edit the menu entry for steam so that the comman to launch it is optirun steam. Then whenever you click on steam, it'll start with the superior graphics capability. 

WAWood is right; the best place for detailed and specific help on how to do this in ubuntu is a ubuntu forum. -GEF