These messages are very suspicious in your second ~/.xsession-errors file: "ALSA lib ../../../src/pcm/pcm_dmix.c:874:(snd_pcm_dmix_open) unable to open slave".
Could you please try running a normal session from a fresh boot (so you get fully working sound), and do all of your normal tasks for an hour or so (including running your normal media application to listen to sound), and then confirm that your ~/.xsession-errors file for this session does not contain these errors (or just attach the file here again). Thank you. -- no sound at all after session stop https://bugs.launchpad.net/bugs/252899 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs