The 7-to-8 issue is a problem with unity8. I've got a branch attached. I don't know what's going on with your 8-to-7 issue, but I can't reproduce it myself.
I don't actually recognize what's going on with your screen in that video -- you have an OSK? With some white box in the middle of the screen? ** Package changed: lightdm (Ubuntu) => unity8 (Ubuntu) ** Changed in: unity8 (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1604374 Title: Lock screen/greeter shown when switching user sessions Status in unity8 package in Ubuntu: In Progress Bug description: I have two users one set to use Unity7 and one using Unity8. Switching from 7 to 8 I login at the normal prompt then several seconds later the greeter is shown and need to login again. Switching from 8 to 7 is similar, login then get the lock screen. In this case the screen is black after the first login until you provide some mouse input. My settings are set to lock the screen on suspend or when screen goes off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1604374/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp