This is still occurring on Ubuntu 13.04 "Raring Ringtail". I'm getting sound but no video. I have gstreamer1.0-plugins-bad, gstreamer1.0-plugins-ugly and gstreamer1.0-libav installed.
Regarding your comment "(I love Ubuntu’s “wait for a while and hope the bug goes away” technique of bug “fixing”)", Ubuntu/Canonical are not the developers of this software. I suggest that you file a gstreamer bug report in the upstream bugtracker at bugs.freedesktop.org and then add a watch to this bug by clicking "Also affects project" at the top of the page.
This is still occurring on Ubuntu 13.04 "Raring Ringtail". I'm getting sound but no video. I have gstreamer1. 0-plugins- bad, gstreamer1. 0-plugins- ugly and gstreamer1.0-libav installed.
Regarding your comment "(I love Ubuntu’s “wait for a while and hope the bug goes away” technique of bug “fixing”)", Ubuntu/Canonical are not the developers of this software. I suggest that you file a gstreamer bug report in the upstream bugtracker at bugs.freedeskto p.org and then add a watch to this bug by clicking "Also affects project" at the top of the page.