Segfault. Tried to launch app from xfce menu and then xterm. The following was reported in /var/log/messages Jun 30 22:19:35 aslan kernel: [22277.798743] xfmedia[23036]: segfault at 74727f ip 00007f283e8a3a2a sp 00007fff4b64b630 error 4 in libpthread-2.9.so[7f283e89b000+17000] Jun 30 22:19:50 aslan kernel: [22293.323696] xfmedia[23051]: segfault at 74727f ip 00007fe2d7599a2a sp 00007fffe4340ad0 error 4 in libpthread-2.9.so[7fe2d7591000+17000] Jun 30 22:20:07 aslan kernel: [22309.969889] xfmedia[23410]: segfault at 74727f ip 00007f57e72fba2a sp 00007ffff40a3650 error 4 in libpthread-2.9.so[7f57e72f3000+17000] Jun 30 22:20:15 aslan kernel: [22317.958735] xfmedia[23456]: segfault at 74727f ip 00007fe8ed617a2a sp 00007ffffa3be110 error 4 in libpthread-2.9.so[7fe8ed60f000+17000] Please let me know if I can help further. Cheers, Chris.
Xfmedia is unsupported and unmaintained. I'm surprised Ubuntu is still shipping it. You can try the git version (see http://git.xfce.org) to see if that fixes your problem, but I wouldn't expect it to.
Xfmedia is unmaintained.