2013/6/5 Marc Shapiro <marcns...@gmail.com> > There are three people with logins to my desktop box -- myself, my wife > and my daughter. My daughter plays Flash games with sound all the time and > has no problems. I run YouTube videos and otherwise use sound with no > problems. My wife gets no sound whatsoever. We used to have a problem > with the sound being grabbed by something and then I would need to kill > things manually, but I eliminated all KDE apps and that problem went away. > I think that was back when I was still running Etch, anyway. When I need > to verify that sound is working and not locked up, I just use 'play' with a > .wav file. My wife was just playing a video and getting no sound, so, > under my login I ran: > > play /home/marc/public_html/**footpain/media/montoya.wav > > /home/marc/public_html/**footpain/media/montoya.wav: > > File Size: 14.8k Bit Rate: 13.1k > Encoding: GSM > Channels: 1 @ 16-bit > Samplerate: 8000Hz > Replaygain: off > Duration: 00:00:09.04 > > In:100% 00:00:09.04 [00:00:00.00] Out:434k [ | ] Clip:0 > Done. > > and, as you can see, it worked just fine. > > So I swiched over to my wife's login and did the same thing: > > play /home/marc/public_html/**footpain/media/montoya.wav > ALSA lib pcm_dmix.c:985:(snd_pcm_dmix_**open) unable to create IPC > semaphore > play FAIL formats: can't open output file `default': snd_pcm_open error: > Permission denied > > As you can see, it failed. Can anyone tell me just what is failing and > how to correct it. My first thought was that it was a permissions problem > and perhaps she needed to be added to the 'audio' group, or some such, as > she is only in her own group. But then I checked my daughter's account. > She is also only in her own group; not in 'audio' or anything else. So > that ruled out that solution. The error says 'Permission denied" however, > so it is some kind of permissions problem, I just don't know what. > > Any help will be greatly appreciated. > > Marc
You should use ipc_key_add_uid TRUE in your .asoundrc when defining dmix. Details are in http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html Regards /r
