The desktop size is bigger than display resolution in the login screen no matter how I enter it: by logging out, by restarting Xubuntu, or by restarting X by Ctrl+Alt+Backspace. It does not matter, whether the option "Xinerama" is "false" or "true" in xorg.conf. But for the desktop size (of the first screen) after logging in, the Xinerama setting is relevant.
There is still row "(--) MGA(0): Virtual size is 1152x864 (pitch 1152)" in /var/log/Xorg.0.log. -- Desktop size bigger than monitor resolution on the primary screen when using Xinerama https://launchpad.net/bugs/61727 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
