Since a longer while I usually use only one monitor, either the laptop internal one or only the external one (laptop closed and attached to docking station). However, I did have several presentations lately using beamer as secondary monitor. It worked flawlessly either in mirror or non-mirror mode.
Side note: In the meantime I also switched laptop and from Ubuntu 10.04 to 12.04, so if this problem was related to particular motherboard or Linux Kernel, maybe the change of the laptop could have solved the issue (previously I had a Dell Latitude E5500, no I use a Dell Latitude E6530). But both were Intel graphics and not ATI. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/577959 Title: secondary monitor is not correctly initialized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/577959/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs