Thanks for the tip. I put that line in my /etc/asound.conf . It is the
only line present.:
pcm.!default "plughw:0,0"
I run mpg321 -o alsa something.mp3 and I get:
ALSA lib pcm.c:1959:(snd_pcm_open_conf) Invalid type for PCM default definition
(id: default, value: plughw:0,0)
ALSA snd_pcm_open error: Invalid argument
...but it plays perfectly, no underruns.
I don't think I have anything else running when this happens, my
complere ps is:
[EMAIL PROTECTED]:/etc# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 21:09 ? 00:00:00 init [3]
root 2 1 0 21:09 ? 00:00:00 [ksoftirqd/0]
root 3 1 0 21:09 ? 00:00:00 [events/0]
root 4 1 0 21:09 ? 00:00:00 [khelper]
root 5 1 0 21:09 ? 00:00:00 [kthread]
root 7 5 0 21:09 ? 00:00:00 [kblockd/0]
root 8 5 0 21:09 ? 00:00:00 [kacpid]
root 82 5 0 21:09 ? 00:00:00 [khubd]
root 114 5 0 21:09 ? 00:00:00 [pdflush]
root 115 5 0 21:09 ? 00:00:00 [pdflush]
root 117 5 0 21:09 ? 00:00:00 [aio/0]
root 116 1 0 21:09 ? 00:00:00 [kswapd0]
root 188 5 0 21:09 ? 00:00:00 [kseriod]
root 231 1 0 21:09 ? 00:00:00 [kjournald]
root 279 1 0 21:09 ? 00:00:00 udevd
root 424 1 0 21:09 ? 00:00:00 /home/ibus/docker
root 425 1 0 21:09 ? 00:00:00 /home/ibus/cdemulator
root 730 1 0 21:09 ? 00:00:00 /usr/sbin/syslogd
root 735 1 0 21:09 ? 00:00:00 /usr/sbin/klogd -c 3 -x
root 1256 1 0 21:09 ? 00:00:00 [pccardd]
root 1267 1 0 21:09 ? 00:00:00 [pccardd]
root 2796 1 0 21:09 ? 00:00:00 /usr/sbin/inetd
root 2801 1 0 21:09 ? 00:00:00 /usr/sbin/sshd
root 2839 1 0 21:09 ? 00:00:00 /usr/sbin/crond -l10
daemon 2841 1 0 21:09 ? 00:00:00 /usr/sbin/atd -b 15 -l 1
root 2844 1 0 21:09 ? 00:00:00 /usr/sbin/acpid
root 2896 1 0 21:10 ? 00:00:00 /usr/sbin/httpd
root 2910 1 0 21:10 tty1 00:00:00 /sbin/agetty 38400 tty1
linux
root 2917 1 0 21:10 tty2 00:00:00 /sbin/agetty 38400 tty2
linux
root 2918 1 0 21:10 tty3 00:00:00 /sbin/agetty 38400 tty3
linux
root 2919 1 0 21:10 tty4 00:00:00 /sbin/agetty 38400 tty4
linux
root 2953 1 0 21:10 tty5 00:00:00 /sbin/agetty 38400 tty5
linux
root 2967 1 0 21:10 tty6 00:00:00 /sbin/agetty 38400 tty6
linux
nobody 3015 2896 0 21:10 ? 00:00:00 /usr/sbin/httpd
nobody 3016 2896 0 21:10 ? 00:00:00 /usr/sbin/httpd
nobody 3017 2896 0 21:10 ? 00:00:00 /usr/sbin/httpd
nobody 3018 2896 0 21:10 ? 00:00:00 /usr/sbin/httpd
nobody 3019 2896 0 21:10 ? 00:00:00 /usr/sbin/httpd
root 3028 2801 0 21:10 ? 00:00:00 sshd: [EMAIL PROTECTED]/0
root 3036 3028 0 21:10 pts/0 00:00:00 -bash
root 3098 3036 0 21:11 pts/0 00:00:00 ps -ef
Takashi Iwai wrote:
At Mon, 27 Mar 2006 16:58:10 -0500,
Lee Revell wrote:
On Mon, 2006-03-27 at 22:50 +0100, scott wrote:
Thanks for the reply. I take it that means something like "mpg321 -o
alsa -a plughw:0,0 ..." I run that and I get:
Can't open libao driver with device plughw (is device in use?)
In case its important I dont have a /proc/asound/dev directory, could
that be a problem?
Do you have a sound server running, or another app that might be
blocking the sound device?
This might be a problem of dmix and libao combination.
libao tries to open the default PCM at first to probe the availability
of the sound driver, close it, then reopen again with the given PCM.
The dmix(-server) tends to keep the file descriptor for a short
period, and this prevents the reopen. This problem should be fixed my
patches posted yesterday.
A quick fix is to redefine default to plughw in ~/.asoundrc
pcm.!default "plughw:0,0"
Takashi
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