Record Screen -with avconv

http://askubuntu.com/questions/167683/how-to-add-microphone-audio-into-avconvs-video-in-x11grab-mode


now this worked to create an mp4 video !!!


avconv -f alsa -i pulse -f x11grab -r 30 -s 1366x768 -i :0.0 -vcodec libx264 -preset ultrafast -threads 4 -y myscreencast.mp4

^C to stop encoding and save the file. 



* To determine your screen resolution, go to System Settings under "Hardware" to find out.
I am using 1920 x 1200.