I'm getting all-black desktop too. But it's literaly all black. Even if I DISPLAY=:0 mplayer video_file.mp4, that video does not show up.
Once I caught a glimpse of a perfectly well started KDE5 session, but that happened when I was killing it. Sounds like there is some kind of a "black curtain" over everything? WTF -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442610 Title: sddm is all black To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sddm/+bug/1442610/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs