ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
  built on Mar 30 2013 22:23:21 with gcc 4.7.2
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
[x11grab @ 0x8b29a20] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1366 height: 768
[x11grab @ 0x8b29a20] shared memory extension  found
[x11grab @ 0x8b29a20] Estimating duration from bitrate, this may be inaccurate
Input #0, x11grab, from ':0.0':
  Duration: N/A, start: 1369864395.328684, bitrate: 839270 kb/s
    Stream #0.0: Video: rawvideo, bgra, 1366x768, 839270 kb/s, 25 tbr, 1000k tbn, 25 tbc
[alsa @ 0x8b24fc0] capture with some ALSA plugins, especially dsnoop, may hang.
[alsa @ 0x8b24fc0] Estimating duration from bitrate, this may be inaccurate
Input #1, alsa, from 'plughw:2,0':
  Duration: N/A, start: 222839.000010, bitrate: N/A
    Stream #1.0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Unable to find a suitable output format for 'sameq'