For X-Window (which is the software between card graphic driver and widget like GTK or Qt), the number of screens must not change. If screen is mirrored, you have only one physical screen. Else you have two independant screens or or big virtual screen mapped on two physical screens. In the stone edge (aroung 1980), X-Window was conceived to use many screens, but programmers get used to think on a single screen. So you need to reboot X-Window and all software which use it.
I think problem lies more in Gnome or KDE, which save session data. Can you explain me what exactly you means by "the external screen is not refreshed" ? -- Dual screen not working with Ubuntu 9.04 and intel 4500 MHD (on HP 6730B laptop) https://bugs.launchpad.net/bugs/379423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
