I'm not sure when it happened but this version 12.10 will not recognize my external monitor. 12.10 works fine on my Dell laptop. And I verified the monitor and its cords are fine.
on 11/21/2012 – Made popular on 11/21/2012
I am having a strange problem with my external monitor. I recently installed Ubuntu 14.04 (64 bit) on hp elitebook 840 g1. I connected my laptop to an external monitor which has full HD option. Everything was working fine.