permissions issue in audio/alsa/pulseaudio

kev000 · 09-23-2009, 12:48 PM

I'm developing linuxice and I'm currently having an issue with getting sound working. LinuxICE is based on ubuntu but built from the ground up with only the bare necessities (ie, no GDM, etc). I'm starting a minimal session by logging into the user via mingetty in /etc/event.d/tty1 and then startx via ~/.bash_profile.

aplay -l says i have no sound cards, while sudo aplay -l lists it correctly. Pulseaudio reports that it's using a NULL Output device for sound. Killing it and restarting it does nothing.

ck-list-sesssions lists: "active = FALSE".

Any help would be appreciated. My guess is that consolekit (or something else), isn't giving the user permission for the audio devices and thus pulseaudio run in user mode cannot access the sound devices either...

thanks

kev000 · 09-23-2009, 09:55 PM

Here's the output of getfacl /dev/snd/* :

Code:

# file: dev/snd/pcmC0D0c
# owner: root
# group: audio
user::rw-
group::rw-
mask::rw-
other::---

# file: dev/snd/pcmC0D0p
# owner: root
# group: audio
user::rw-
group::rw-
mask::rw-
other::---

# file: dev/snd/pcmC0D1c
# owner: root
# group: audio
user::rw-
group::rw-
mask::rw-
other::---

# file: dev/snd/seq
# owner: root
# group: audio
user::rw-
group::rw-
mask::rw-
other::---

# file: dev/snd/timer
# owner: root
# group: audio
user::rw-
group::rw-
mask::rw-
other::---

exvor · 10-27-2009, 09:39 PM

I had a similar problem in gentoo after a fresh build on my laptop.

Make sure that your user is added to the audio group in /etc/group
otherwise they will not have the correct permissions to access the audio hardware.

Sorry for the late reply btw I have been MIA from this site for a while now.