Sound for multiple users at the same time

PARENA · Guru Joined: 06 Jan 2003 Posts: 349

Right, I've got X running twice: once for my wife and once for myself. But, if she's the first one to log on, she takes over the sound and when I log on, I can't play anything. And vice-versa, of course.

So, my question to you is: how do I go about enabling sound for both my wife and myself at the same time?

drakonite · l33t Joined: 02 Nov 2002 Posts: 768 Location: Lincoln, NE

Two sounds at once.... One of the questions asked all the time on this forum...
What exactly do you mean you can't use sound after she has logged in? Does she have some sound playing while you can't use sound?
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PARENA · Guru Joined: 06 Jan 2003 Posts: 349

No, let's say I log in with Openbox...

Then she logs in using KDE (3.1rc6)

She gets an error that the sound device can't be opened (Permission denied)

And the other way around.

/dev/sound:
crw------- 1 parena audio 14, 3 Jan 1 1970 dsp
crw------- 1 parena audio 14, 19 Jan 1 1970 dsp1
crw------- 1 parena audio 14, 2 Jan 1 1970 midi
crw------- 1 parena audio 14, 0 Jan 1 1970 mixer

This is what happens when I login first. If she logs in first, it's her name and group audio. I'm a total noob when it comes to the sound dev. Can I just change permissions to 770 (she's part of group audio) or what?

drakonite · l33t Joined: 02 Nov 2002 Posts: 768 Location: Lincoln, NE

Hmm.. I see the problem now. Somewhere or another you need to have all the sound settings set to allow all users in the audio group to use them, not just the "owner" That will fix the problem.

Unfortunatly I think you need to edit something in some configuration file... devfsd.conf I think....
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PARENA · Guru Joined: 06 Jan 2003 Posts: 349

This was with devfs 'switched' off... if you have it on and change permissions, it switches them back. That's why I turned it off, wanted to see if permissions could be kept that way... but that's not a good solution, if it is any kind of solution.

[edit]
Yes, it worked... I chmod-ed 770 all in /dev/sound and now sound works for 2 ppl at the same time. I can even play an MP3 on "her" X screen running KDE and CTRL-F8 to mine and start another MP3. Cool...

but still, if I enable devfs again, it'll change back permissions. Maybe even with devfs still disabled...

I'll go try

[edit]
tried it... both with defvs enabled and disabled, it all gets set to rw------- for username.audio when someone logs in. :/

I could put "chmod 660 /dev/sound/*" in the startup scripts, but that doesn't seem like a solid solution to me...

drakonite · l33t Joined: 02 Nov 2002 Posts: 768 Location: Lincoln, NE

If you edit /etc/devfsd.conf you can set what it sets as the permissions. Min e has the following chunk for sound..

PARENA · Guru Joined: 06 Jan 2003 Posts: 349

Yeah, mine has that as well. But as soon as someone logs in under say KDE or Openbox, permissions get set to 600 for username.audio