Unlike Zeni, I would like to turn off my Nvidia video card and use only my integrated Intel card. When I'm watching movies, there is a very small (almost unobservable) tearing of the image - especially those in motion, not the static ones. Occasionally (once in 1-2 months), there is some lag, but I solve this problem by changing the kernel. In Ubuntu derivatives I don't have these problems. Also, in Ubuntu derivatives (Zorin and Mint), the OS is using the Intel card by default and the movie quality is better than when using the Nvidia card.
A month ago, I uninstalled bumblebee and installed video-intel and video-nvidia, and broke my system, this way. Could I change the video driver safely?
Thanks a lot.