I think I have spotted the problem. In preferences>subtitles>font and colors choose normal subtitles. The slowdowns are gone!
When switching to ssa/ass subtitles the problem is back. -- dropped frames using vdpau and subtitles https://bugs.launchpad.net/bugs/669914 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs