"Mikkel L. Ellertson" <mikkel@xxxxxxxxxxxxxxxx> writes: > Lars Bjørndal wrote: >> lars.bjorndal@xxxxxxxxxxxx (Lars Bjørndal) writes: >> >>> Hi! >>> >>> I'm running Fedora F7, without X. I'm able to do 'mplayer <url>' for >>> one user at a time. However, I'm not able to do 'mplayer <url>' for >>> one user, and then 'mplayer <another-url>' as another user. Then I get >>> the following error message: >>> >>> [AO_ALSA] alsa-lib: pcm_dmix.c:831:(snd_pcm_dmix_open) unable to >>> create IPC semaphore >>> [AO_ALSA] Playback open error: Permission denied >>> >>> It's not important to me to play mplayer that way, however, I want to >>> be able to run speech-dispathcer (which, BTW should have an rpm pacage >>> for Fedora) and play mplayer at the same time. How could I solve this >>> permission problem? >>> >>> I've tried to put in /etc/security/console.perms.d/50-default.perms: >>> >>> <console> 0666 <sound> 0600 root, >>> >>> and ls -al /dev/audio gives: >>> >>> crw-rw-rw-+ 1 lrs root 14, 4 2007-11-29 10:00 /dev/audio >>> >>> Lars >> > Dumb question - is the first user's mplayer closed before the second > user tries to run their copy of mplayer? I am not familiar with the > error message, but I am guessing that the problem is that something > has a connection to the mixer open, and so you can not open another. > If that is the case, you may be able to do something using the jack > add-ons to alsa. To your question: I tried to run two instances of mplayer at the same time. And: I'm able to run two mplayer sessions at the same time from the same user. The problem raises if I first start mplayer for user1, then switches to user2 and start mplayer. Mplayer is still running on user1. Any suggestions? Lars
