I think we have a workaround : disable screen dim as it has problems (sometimes) with external monitors. Simply run this for each user :
gsettings set org.gnome.settings-daemon.plugins.power idle-dim-battery false -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995372 Title: switching external monitors impossible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/995372/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
