Fedora 6 - Dell Dimension 8300 - Creative Audigy sound card. Multiuser trouble..

[Matt Domsch]

On Sat, Nov 11, 2006 at 06:49:14PM +0100, Harald_Jensas at dell.com wrote:
> Hi,
> 
> I have been running FC 6 for a couple of weeks now and I am quite happy with it.
> However, there is an issue that I can't get fixed..
> 
> I have set up 2 user accounts on the system, and the problem is that only the first user to start a KDE or Gnome session is able to play sound. I also noticed that this is not the case for root.
> 
> I figured this must be some kind of permissions in the /dev folder.
> I had a look and noticed that several device nodes are created for sound, and all of them get the following permissions:
> 
> crw------- username root audio
> 
> Where username is the first user to start a session.
> By manualy setting the permission on the device nodes in /dev to crw-rw-rw all users that start a session is able to play sounds. But since these device nodes are created by udev these permissions changes are lost after a reboot.
> 
> 
> My attempt to solve the problem:
> 
> 1. Configure udev rules to place sound device nodes in a specific group named audio.
> 2. Configure udev rules to set permissions on the device nodes to crw-rw----.
> 3. Make all users that I want to allow playing sounds members of the audio group.
> 
> So I edit the audio part of my /dev/etc/udev/rules.d/50-udev.rules

This is what I've been doing myself, as I run 3 X servers (one for me,
my wife, and the kids share one too).  PITA, but "works for me".

-- 
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com