Hello. No surprise: the top process is... lightdm-gtk-greeter. But I discovered that it is the case this morning (I will have to check again).
And I found at last an easy turnaround: the screen is refreshed correctly as soon as... I click with the mouse! I did not try before (I did not think it could be so simple). As a consequence, this bug is minor (as long as the click works - I will come back if it doesn't). Bye (I hope). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1610543 Title: After upgrading to 16.04, greeter does not handle double screen anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1610543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs