I had this problem too in Ubuntu 12.04. So, I removed mplayer2 and installed mplayer:
sudo apt-get purge mplayer2 sudo apt-get install gecko-mediaplayer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1014279 Title: Impossible to play a video with gnome-mplayer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mplayer2/+bug/1014279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs