I'm posting in this because it sounds the same as the bug I want to report. Since Jaunty, embedded youtube videos often have these artefacts flickering through. I'm fairly certain that it is the menu 'showing through', by menu I mean the screen that can be accessed by clicking the up arrow at the bottom right of an embedded video and then the first option which causes the video to shrink and become part of a menu with a youtube search bar, embed and URL link with similar videos at the bottom. The reason I think that it's this is that I think I can sometimes see the text in part of what flickers into vision, also the flickering stops once the video has been 'shrunk' to form part of that menu.
-- Wierd blocking artifact overlayed onto flash video https://bugs.launchpad.net/bugs/340107 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