don't know if this will help, but found this errorreport inlog in log about sound
Feb 8 21:41:28 topomarly-ThinkPad-T510 pulseaudio[1900]: [alsa-sink] alsa-sink.c: Error opening PCM device front:0: Device or resource busy Feb 8 21:42:08 pulseaudio[1900]: last message repeated 2 times Feb 8 21:42:08 topomarly-ThinkPad-T510 kernel: Kernel logging (proc) stopped. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/929072 Title: [4384AW2, Conexant CX20585, Black Headphone Out, Right] Playback problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/929072/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
