Same issue in Debian: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=785055
2 monitors, white screen, 100% CPU usage. This seems to be the same bug as bug #1410406 (though this one says that the screen is black). ** Bug watch added: Debian Bug tracker #785055 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785055 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1426664 Title: After booting to lightdm-gtk-greeter, get a white screen until I click a mouse button To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1426664/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs