problem solved by upgrading with proposed enabled, but now I have again the problem https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1721248 solved again removing gstreamer1.0-vaapi plugin
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749480 Title: Totem black screen with Sparks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gstreamer1.0/+bug/1749480/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs