It is found that assigning the crtc to "1" by xrandr command can make VGA output work, e.g.:
`xrandr -d :0.0 --output VGA1 --auto --preferred --crtc 1` marked the bug as affecting the gnome-desktop source package for investigating if this is something to add in gnome-rr-* functions. ** Changed in: linux (Ubuntu) Importance: High => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791752 Title: Can not toggle Display to External only mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-desktop/+bug/791752/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
