When opening a file in GMP it will loop on fast-forward, not showing any video or playing any sound.
Output:
[~/Downloads]$ gnome-media-player Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi
** (gnome-media-player:28449): DEBUG: Adding 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi' to playlist
** (gnome-media-player:28449): DEBUG: 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi' added to playlist
** (gnome-media-player:28449): DEBUG: Selecting first row
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 1709612658
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 1410824798
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 738410919
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 954295304
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 305786491
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 88142420
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 1072650031
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
** (gnome-media-player:28449): DEBUG: Playing 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** Message: Xine engine created
** (gnome-media-player:28449): DEBUG: Engine MRL set to 'Film.2010.With.Jonathan.Ross.E07.WS.PDTV.XviD-aAF.avi'
** (gnome-media-player:28449): DEBUG: Got Cookie: 1283851128
** (gnome-media-player:28449): DEBUG: Screensaver inhibited
Using 0.1-1bzr38~karmic1 from the PPA.
Can you try it with the "-e vlc" option? Also, please try that movie in the xine UI, does it do the same thing?