Is having dual monitor support with Ubuntu Quantal Quetzal version 12.10 possible? Immediately after installing Ubuntu the dual monitors worked. Then suddenly there was a change to the system that I don't know what happened but I know the external monitor stopped working. I booted with the Quantal Quetzal installation cd and wala the external monitor was nicely supported. So I began researching the grub and found that there were 4 operating systems which I could pick from (including the recoveries). I picked one of the operating systems at the bottom of the list, specifically version 3.5.0-17.28, and the dual monitors worked. So I restarted tried again and no luck. Hmmm. Very peculiar. Anyways, the current operating system is 3.5.0-21.32 and to the best of my knowledge there is only one operating system (os) because I purged the additional os.