You modified the /etc/group file, and audio is no longer a valid group:
The manual page for /etc/group (man group
) does not say you can comment a line with a beginning '#'. Delete the #audio line. Then look at the plain audio line and the video group below it. Notice a difference? You removed one of the fields. The 'x' does matter
. You need to change the line to:
Again, read the man page for what each field represents.
you fix /etc/group, run the chown command again.
Then, as a user satimis, execute groups
and make sure audio is listed. If it isn't, you need to log out of the system completely
. Opening a new xterm won't work. In fact, I would suggest you reboot if the audio group is not listed. Then run the command again to verify satimis is part of the audio group, and do any other permission restrictions on alsamixer or other commands.