I am apparently still missing something. Sorry to beat this topic with a stick but I really want to make it work! I am learning with each step and so appreciate the help!
OK, I was able to get into the group.conf file. I went all the way to the end and pasted in the line
*;*;*;Al0000-2400;adm,cdrom,floppy,sudo,audio,dip,video,plugdev,bluetooth,scanner,lpadmin,netdev,sambashare
then saved. I actually tried pasting it at the very end and also before where it said:# End of group.conf file (at different times, testing it each time)
Either way, when I logged out and logged back in as a domain user, the sound still did not work and the sound settings listed Dummy Output as the only device. I did follow the other instructions:
sudo gedit /usr/share/pam-configs/my_groups
copy and paste from below and save the file:
Code: [Select]
Name: activate /etc/security/group.conf
Default: yes
Priority: 900
Auth-Type: Primary
Auth:
required pam_group.so use_first_pass
sudo pam-auth-update
So, I guess I am doing something wrong still.