After reading https://bugs.freedesktop.org/show_bug.cgi?id=22076, I disabled compiz and moved to metacity, and I can now setup dual screen fine, no more bug ! I am currently writing this comment from my dual screen setup with metacity !
So, moving from compiz to metacity is a simple workaround for this bug. ** Bug watch added: freedesktop.org Bugzilla #22076 https://bugs.freedesktop.org/show_bug.cgi?id=22076 -- [karmic] X servers hangs when settings up dual monitor config https://bugs.launchpad.net/bugs/438000 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ 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