I just installed 12.04.1 on an HP Pavilion dv6-2106ea. I have a second monitor plugged in the VGA port which was detected during the install (and used as a duplicate display). Now the install is complete it is not being detected.
According to System Settings | System | Details | Graphics I have an "Unknown" driver, but System Settings | Hardware | Additional Drivers says I have NVIDIA accelerated graphics driver (currently the Recommended release, but the other has the same effect).
This may be a duplicate of the unanswered https://askubuntu.com/questions/132526/unable-to-use-second-monitor
Any help would be appreciated.