ALSA not working. (jackd)

kaz2100 · 01-06-2006, 03:19 PM

Hi, penguins.

I am experiencing trouble with ALSA. I am using debian with kernel 2.6.10. I successfully installed jackd and alsa, then configured alsa with alsaconf. xmms works (plays mp3 file)

When I start jackd, I get following.

Code:

>jackd -d alsa 
jackd 0.99.0
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

loading driver ..
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
cannot load driver module alsa

Following is content of /etc/modprobe.d/sound

Code:

alias snd-card-0 snd-intel8x0
options snd-intel8x0 index=0

aplay gives me following

Code:

>aplay ~/c.wav
ALSA lib confmisc.c:550:(snd_determine_driver) could not open control for card 0
ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:387:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_concat returned error: No such device
ALSA lib confmisc.c:945:(snd_func_refer) error evaluating name
ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_refer returned error: No such device
ALSA lib conf.c:3930:(snd_config_expand) Evaluate error: No such device
ALSA lib pcm.c:2068:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:508: audio open error: No such device

Kernel config file (sound related part) follows:

Code:

CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_RTCTIMER=m
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_INTEL8X0=m

I looked around the web, but I have not found solution yet.

Any suggestion will be appreciated. Thanks in advence.

generic_genus · 01-06-2006, 05:47 PM

When you run jack is there anyother software accessing the soundcard e.g. do you have xmms open, or is there another sound server running such as esound or arts?

foo_bar_foo · 01-06-2006, 08:10 PM

yo need realtime access
modprobe realtime any=1
or you have not passed realtime the right parameters

or you can run jackd without -R

or run jackd as root using sudo or something

kaz2100 · 01-07-2006, 07:49 AM

Thank you for your replies.

I tried to run immediately after reboot as root, and same result. jackd -R is same too. aplay also does not work.

MMYoung · 01-07-2006, 08:05 AM

Do you have alsa-plugins installed? For jackd to work in conjunction with alsa you will need to install the plugins as well, IIRC.

HTH,
MMYoung

kaz2100 · 01-07-2006, 10:23 AM

thanks,

I installed a Debian package named "alsaplayer-jack". I am not sure if this is the plugin MMYoung says.

So far, I checked following:
alsasound utility returns

Code:

>sh alsasound
ALSA sound driver loaded.
>

alsamixer does not work.

Code:

>alsamixer

alsamixer: function snd_ctl_open failed for default: No such device
>

amixer does not either

Code:

>amixer
amixer: Mixer attach default error: No such device
>

~/.asoundrc looks like

Code:

>cat .asoundrc 
pcm.intel8x0    {
        type hw
        card 0
}
ctl.intel8x0    {
        type hw
        card 0
}
>

lsmod looks ok (modules are loaded)

Code:

> lsmod
Module                  Size  Used by
nvidia               3915004  12 
snd_intel8x0           28320  0 
snd_ac97_codec         73376  1 snd_intel8x0
snd_pcm_oss            48676  0 
snd_mixer_oss          17568  1 snd_pcm_oss
snd_pcm                82728  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              20228  1 snd_pcm
snd                    45028  6 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
ipv6                  228832  10 
pcmcia                 19144  4 
ohci_hcd               32328  0 
ehci_hcd               40516  0 
yenta_socket           19136  0 
pcmcia_core            48080  2 pcmcia,yenta_socket
e100                   29792  0 
8250_pci               16768  0 
8250                   21340  1 8250_pci
serial_core            17984  1 8250
snd_page_alloc          7524  2 snd_intel8x0,snd_pcm
uhci_hcd               30828  0 
shpchp                 78420  0 
pci_hotplug             9636  1 shpchp
>

/etc/modules.conf (it is huge, so related part) looks like

Code:

# snd module options
options snd device_mode=0660
# autoloader aliases
alias char-major-116 snd
alias char-major-14 soundcore
###
alias snd-card-0 snd-intel8x0
###
alias sound-slot-0 snd-card-0
alias sound-slot-1 snd-card-1
alias sound-slot-2 snd-card-2
alias sound-slot-3 snd-card-3
alias sound-slot-4 snd-card-4
alias sound-slot-5 snd-card-5
alias sound-slot-6 snd-card-6
alias sound-slot-7 snd-card-7
above sound-slot-0 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-1 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-2 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-3 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-4 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-5 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-6 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-7 snd-pcm-oss snd-mixer-oss snd-seq-oss
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

/etc/modutils/alsa-base looks (again it is huge, so top part)

Code:

# snd module options
options snd device_mode=0660
# autoloader aliases
alias char-major-116 snd
alias char-major-14 soundcore
###
alias snd-card-0 snd-intel8x0
###
alias sound-slot-0 snd-card-0
alias sound-slot-1 snd-card-1
alias sound-slot-2 snd-card-2
alias sound-slot-3 snd-card-3
alias sound-slot-4 snd-card-4
alias sound-slot-5 snd-card-5
alias sound-slot-6 snd-card-6
alias sound-slot-7 snd-card-7
above sound-slot-0 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-1 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-2 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-3 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-4 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-5 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-6 snd-pcm-oss snd-mixer-oss snd-seq-oss
above sound-slot-7 snd-pcm-oss snd-mixer-oss snd-seq-oss
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

I recompiled alsa modules, without any error. One thing I notice is the file names under /etc directory, they are alsa-base insted of alsa, but they are generated by aptitude or something.

Any suggestion will be appreciated.

kaz2100 · 03-22-2006, 10:02 AM

I am replying myself.

Missing things were:

#1. Kernel config,

Code:

  CONFIG_SECURITY=y
  CONFIG_SECURITY_CAPABILITIES=m
  CONFIG_SECURITY_SELINUX=y

#2. realtime script and realtime-lsm (both Debian package). This module did not install correct place with my configuration. (I have both 2.6.15.6 and 2.5.6.10 kernels.

Code:

make KERNEL_DIR=/my/src/for/linux-2.6.15.6
make install

resulted in modules installed for 2.6.10. Something is not quite right yet.

kaz2100 · 04-07-2006, 02:51 PM

I found solution to #2 of 22/Mar.

Code:

make install  KERNEL_DIR=/my/src/for/linux-2.6.15.6

takes care of the issue.

Also, I had to modify /etc/init.d/realtime to point "realtime.ko"

Code:

if test ! -e "/lib/modules/`uname -r`/extra/realtime.ko"
                                      ^^^^^