Ubuntu – How to turn off nvidia (hybrid graphics)

14.04hybrid-graphicsnvidia

I have a big problem, which prevents me from using Kubuntu 14.04 as my default system. My Asus ul 80 laptop with hybrid graphics (nvidia g210m and intel adapter) seems to use both graphic cards all the time:

$ lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT218M [GeForce G210M] [10de:0a74] (rev a2) (prog-if 00 [VGA controller])

Can I turn off the nvidia card? I do not want to play with the kubuntu anyway and my laptop is constantly very hot, the fan running a lot and the battery live is only halve compared to win7.
So it would be the easiest solution to just turn nvidia off instead of messing around with switching between the two cards(bumblebee etc. which already has lead to great problems and a reinstall).
I would really appreciate some help, because until now I am not able to use kubuntu all the time and am afraid it will melt the cpu one day.

Best Answer

Thank you for the hint with the proprietary driver. It saved my kubuntu experience. With nvidia version 340 it works perfectly. Furthermore I figured out there was no option in nvidia x server settings menu to switch between the two shown after installing, but you can do it via terminal:

with prime-select query you can see, which one is currently running.

with sudo prime-select intel you can turn on the intel card.

with sudo prime-select nvidia the other one.