I've checked iowait using iotop during lags and revealed no spikes or something like that. So it's not a performance problem at all. I believe gstreamer is just dropping frames due to some bugs. I had 17.10 installed and had no issue that time.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1774915 Title: Video freezes and stutters when using totem (audio continues fine) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1774915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs