As a quick solution you can try the solution added to this bug. It worked for me:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- ati/+bug/573290 -- [RV380] dual monitor not working - M24 1P [Radeon Mobility X600] https://bugs.launchpad.net/bugs/544525 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xserver-xorg-driver-ati. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
