Comment 4 for bug 149559

Indeed, I lacked that second debug library.

Here is the backtrace:

#0 gdk_x_error (display=0x8af5800, error=0xbfea25a8)
    at /build/buildd/gtk+2.0-2.12.0/gdk/x11/gdkmain-x11.c:614
#1 0xb7a26bfa in _XError () from /usr/lib/libX11.so.6
#2 0xb7a286c4 in _XReply () from /usr/lib/libX11.so.6
#3 0xb256ef2c in XvGetPortAttribute ()
   from /usr/lib/libXv.so.1
#4 0xb2584de0 in open_plugin_2 (class_gen=0x8b15138,
    visual_gen=0xbfea27bc) at video_out_xv.c:1097
#5 0xb258590c in open_plugin_old (class_gen=0x8b15138,
    visual_gen=0xbfea2880) at video_out_xv.c:1660
#6 0xb7f8b4cf in _x_load_video_output_plugin (
    this=0x80bf610, id=0x0, visual_type=1,
    visual=0xbfea2880) at load_plugins.c:1527
#7 0xb7f8b544 in xine_open_video_driver (this=0x80bf610,
    id=0x0, visual_type=1, visual=0xbfea2880)
    at load_plugins.c:1591
#8 0x0805a6a8 in ?? ()
#9 0x080bf610 in ?? ()
#10 0x00000000 in ?? ()