Today, I installed xmms and the only sound mixer I had was
xfce4-mixer-4.0.4nb2 mixer plugin (installed via pkgsrc).
But the only audio I would get (at first) was from plugging my speakers
directly into the CD drive. Then I tried playing an audio file with xmms,
while I turned up every mixer slider and finally I heard noise from the
headset output (speakers plugged into it).
I could not get sound from the speaker output, just headphone output
(same speakers). (Headphone output is just too quiet.)
So Google told me about some "External Amplifier Power Down" mixer option.
It was not part of my mixer.
So I started building alsamixer (well really I started building the gnome
prerequisites).
Then I made pkgsrc specifications for alsa-libs and alsa-utils and made
packages for alsa-lib-1.0.4 and alsa-utils-1.0.4 (to be submitted to
pkgsrc-wip project soon).
My plan was to use the amixer or alsamixer to try to get my speakers to
work on the speaker output.
I have read the alsa FAQ and I saw examples of my errors in other places
but no fixes.
This is what I have:
-sh-2.05b# amixer
amixer: Mixer attach default error: No such file or directory
-sh-2.05b# aplay -v /usr/lib/firefox-gtk2/res/samples/test.wav
aplay: main:507: audio open error: No such file or directory
-sh-2.05b# alsamixer
alsamixer: function snd_ctl_open failed for default: No such file or
directory
-sh-2.05b# alsactl --file J2 store
alsactl: save_state:1061: No soundcards found...
-sh-2.05b# uname -orm
2.6.3 i686 GNU/Linux
-sh-2.05b# dmesg | grep -i -A4 sound
Advanced Linux Sound Architecture Driver Version 1.0.2c (Thu Feb 05
15:41:49 2004 UTC).
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0_measure_ac97_clock: measured 49373 usecs
intel8x0: clocking to 48000
ALSA device list:
-sh-2.05b# dmesg | grep -i -A1 alsa
ALSA device list:
#0: Intel 82801BA-ICH2 at 0xdc00, irq 11
-sh-2.05b# grep -B1 -A3 Audio /proc/pci
Bus 0, device 31, function 5:
Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev
5).
IRQ 11.
I/O at 0xdc00 [0xdcff].
I/O at 0xd800 [0xd83f].
-sh-2.05b# lsmod
Module Size Used by
eepro100 27116 -
i810 66252 -
-sh-2.05b# find /usr/lib/modules/2.6.3/ -type f | egrep 'snd|sound'
/usr/lib/modules/2.6.3/kernel/sound/drivers/mpu401/snd-mpu401.ko
-sh-2.05b# cat /proc/asound/oss/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.2c emulation code)
Kernel: Linux montecristo.reedmedia.net 2.6.3 #1 SMP Wed Mar 31 16:11:36
PST 2004 i686
Config options: 0
Installed drivers:
Type 10: ALSA emulation
Card config:
Intel 82801BA-ICH2 at 0xdc00, irq 11
Audio devices:
0: Intel 82801BA-ICH2 (DUPLEX)
Synth devices: NOT ENABLED IN CONFIG
Midi devices: NOT ENABLED IN CONFIG
Timers:
7: system timer
Mixers:
0: Analog Devices AD1881A
-sh-2.05b# cat /proc/asound/oss/devices
1: : sequencer
8: : sequencer
12: [0-12]: digital audio
3: [0- 3]: digital audio
0: [0- 0]: mixer
-sh-2.05b# cat /proc/asound/cards
0 [I82801BAICH2 ]: ICH - Intel 82801BA-ICH2
Intel 82801BA-ICH2 at 0xdc00, irq 11
-sh-2.05b# cat /proc/asound/card0/oss_mixer
VOLUME "Master" 0
BASS "" 0
TREBLE "" 0
TREBLE "" 0
SYNTH "" 0
PCM "PCM" 0
SPEAKER "PC Speaker" 0
LINE "Line" 0
MIC "Mic" 0
CD "CD" 0
IMIX "" 0
ALTPCM "Headphone" 0
RECLEV "" 0
IGAIN "Capture" 0
OGAIN "" 0
LINE1 "Aux" 0
LINE2 "" 0
LINE3 "" 0
DIGITAL1 "" 0
DIGITAL2 "" 0
DIGITAL3 "" 0
PHONEIN "Phone" 0
PHONEOUT "Master Mono" 0
VIDEO "Video" 0
RADIO "" 0
MONITOR "" 0
(I don't know if the above is related.)
-sh-2.05b# ls -l /dev/audio* /dev/dsp* /dev/sndstat
crw-rw---- 1 root audio 14, 4 Apr 9 20:19 /dev/audio
crw-rw---- 1 root audio 14, 20 Apr 9 20:19 /dev/audio1
crw-rw---- 1 root audio 14, 36 Apr 9 20:19 /dev/audio2
crw-rw---- 1 root audio 14, 52 Apr 9 20:19 /dev/audio3
crw-rw---- 1 root audio 14, 7 Apr 9 20:19 /dev/audioctl
crw-rw---- 1 root audio 14, 3 Apr 9 20:19 /dev/dsp
crw-rw---- 1 root audio 14, 19 Apr 9 20:19 /dev/dsp1
crw-rw---- 1 root audio 14, 35 Apr 9 20:19 /dev/dsp2
crw-rw---- 1 root audio 14, 51 Apr 9 20:19 /dev/dsp3
crw-rw---- 1 root audio 14, 6 Apr 9 20:19 /dev/sndstat
-sh-2.05b# cat /dev/sndstat
cat: /dev/sndstat: No such device
(Maybe the device nodes are wrong above?)
I assume I do not need a kernel module for alsa, since I can already play
a wav file and it outputs to my headphone jack.
I can provide the "aplay -L" output if you want it.
I read the alsamixer, aplay and amixer manpages, but they don't tell me
how to find out what "alsa" hardware device to use.
I don't have any system-wide or per-user alsa configuration files.
I want to be able to use some alsa utility to see if I can get my audio
output to work with the regular speaker output.
Any advice?
If I need some sound modules, please tell me the CONFIG_* names for them.
I have:
-sh-2.05b# egrep 'SND|SOUND' /boot/linux-kernel2.6.3-2.6.3.config |grep -v ^\#
CONFIG_SOUND_GAMEPORT=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_MPU401=m
CONFIG_SND_INTEL8X0=y
Jeremy C. Reed
http://bsd.reedmedia.net/
p.s. If you are in the Pacific Northwest (US/BC), be sure to attend Linux
Fest Northwest 2004 on April 17. Over 35 speakers, over 35 booths and over
1000 open source fans ...
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