I created a bug report about this on freedesktop.org: https://bugs.freedesktop.org/show_bug.cgi?id=47776. The problem is related with the playback resolution, because if i shrink the media player's windows size to 400x260 the all videos are running smoothly.
** Bug watch added: freedesktop.org Bugzilla #47776 https://bugs.freedesktop.org/show_bug.cgi?id=47776 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/961124 Title: Choppy video playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/961124/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
