My PC is 64-bit CentOS 6.4 Linux and I'm trying to get sound working. When I
play a .wav file with paplay, no sounds happen. If I try 'cat /dev/urandom |
pacat' no sound happens. I'm using the sound jacks on the systemboard (I have
no separate sound card). I know they work because when I boot into Windows, it
plays sound okay. I know pulseaudio is running because I see the process when
I run 'ps aux | grep pulseaudio'.
I tried following the instructions at
http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Users/Troubleshooting/
but could not get any further because my machine doesn't have 'pavucontrol'.
If I try to play an mp3 file with "mplayer -ao alsa:device:hw=0 file.mp3" it
complains.
[AO_ALSA] alsa-lib: pcm_hw.c:1401:(_snd_pcm_hw_open) Invalid value for card
[AO_ALSA] Playback open error: Permission denied
Failed to initialize audio driver 'alsa:device=hw=0'
Could not open/initialize audio device -> no sound.
I don't know what to do. I'm new to pulseaudio, so I'm sorry if I'm asking
dumb questions. I only want to do simple things (like play a movie with
mplayer) so hopefully I can get it working. Can someone help me figure this
out? Thank you.
Here are some other random command I tried, and their error messages (NOTE:
these errors might occur because pulseaudio is already running):
> pulseaudio
E: socket-server.c: bind(): Address already in use
E: module.c: Failed to load module "module-esound-protocol-unix"
(argument: "")
E: main.c: Module load failed.
E: main.c: Failed to initialize daemon.
> pulseaudio --daemonize
E: main.c: Daemon startup failed.
> pulseaudio -nC
W: main.c: D-Bus name org.pulseaudio.Server already taken. Weird shit!
Welcome to PulseAudio! Use "help" for usage information.
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