[solved] After sytem update ALSA only plays sound for root

Hello. Yesterday I performed a system update as usual, and after rebooting I found that my user account does not have any sound anymore. Root has sound just fine. I checked and my user is still in the audio group. I even removed him from the group, added him again, and rebooted but it did not help.
I get these error messages in a terminal:
mplayer:
alsa-lib: pcm_dmix.c:989:(snd_pcm_dmix_open) unable to create IPC semaphore
speaker-test:
ALSA lib pcm_dmix.c:989:(snd_pcm_dmix_open) unable to create IPC semaphore
Playback open error: -13,Permission denied
Running these with a sudo works 100% fine. Alsamixer levels for my user are normal too.
WORKAROUND: Restart timidity service.
SOLUTION: Do not run timidity as a service in the first place.
Last edited by mir91 (2013-11-25 13:37:12)

Thanks for replying.
My root user actually doesn't play sound, I just tried to play some for testing purpose after my normal user suddenly just had silence.
Unfortunately those IPC-changes did not help. However, I removed my /etc/asound.conf file completely for testing purpose and voila, sound suddenly works again. So it seems the last update changed something that does not accept my asound configuration anymore. I will try to experiment a bit with its contents to further narrow it down.
Ok, this is strange
I commented out an entry
period_time 0
and after that my user had sound again. Then I restored that entry and...sound still works.
I will pretend I didn't see anything and just move along I guess.
Last edited by mir91 (2013-11-17 09:28:59)

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[solved] After sytem update ALSA only plays sound for root

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