I have an Alienware m11x R2 computer running Ubuntu 12.04 (64 bit) with Nvidia drivers and Bumblebee for Optimus technology.
The problem that I have is that if I play a video in full screen it lags, not really bad but enough to notice the lag and for me to get get frustrated. However, flash works fine; my problem lies with mp4, mkv, and other formats like these.
I have tried the default Ubuntu applications and others and they all have the same problems with video playback.
Everything works fine on Ubuntu except this and I don't know how I can fix this.
This is how I installed Bumblebee and Nvidia drivers:
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo add-apt-repository ppa:bumblebee/stable sudo apt-get update sudo apt-get install bumblebee bumblebee-nvidia
If anyone could help it would be very much appreciated.