Falla captura en kdenlive

Hola a todos en este foro.

Al querer utilizar el capturador de pantalla en Kdenlive me da un error.

http://postimg.org/image/kbi3w35v3/

http://postimg.org/image/4z902ni4l/


ffmpeg version 2.4.9 Copyright (c) 2000-2015 the FFmpeg developers built on May 17 2015 20:05:51 with gcc 4.9.2 (GCC) configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-x11grab --enable-runtime-cpudetect --enable-libdc1394 --enable-libschroedinger --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libnut --enable-libgsm --enable-libcelt --enable-libopus --disable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libx264 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libxvid
libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100
[x11grab @ 0xa33200] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1366 height: 768
[x11grab @ 0xa33200] shared memory extension found
Input #0, x11grab, from ':0.0': Duration: N/A, start: 1448499159.786990, bitrate: 503562 kb/s Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1366x768, 503562 kb/s, 15 tbr, 1000k tbn, 15 tbc
pulse: No such file or directory


Ya he desinstalado y vuelto a reinstalar el ffmpeg y el kdenlive y no he encontrado solución.

Espero me puedan dar una solución. Saludos