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Old 03-21-2003, 07:46 AM   #1
Johng
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lost sound


My Mandrake 9 KDE system has decided to have no sound - except for line input and CD player.

I cannot hear output from Xmms, Konqueror internal player, etc. Xmms shows the audio levels on the spectrum display when playing an audio file.

The master and PCM sliders in the mixer are set to maximum.

The Gnome Sound Recorder, appears to record, but there is no sound on playback.
Audacity opens a file, but there is no sound when the play button is pressed. Simlarly, on record, there is no signal amplitude.
The X-CD-Roast test for /dev/dsp does not produce a sound.
KDE Control Center/Sound/Sound Server sound test does not produce a sound.

All these functioned normally until now.

The sound card works OK on Knoppix Linux and Windows.

I have searched for solutions without success so far.

Can anyone give me some clues on what has happened?
 
Old 03-21-2003, 08:20 AM   #2
rch
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Re: lost sound

Quote:
Originally posted by Johng
My Mandrake 9 KDE system has decided to have no sound - except for line input and CD player.

I cannot hear output from Xmms, Konqueror internal player, etc. Xmms shows the audio levels on the spectrum display when playing an audio file.

The master and PCM sliders in the mixer are set to maximum.

The Gnome Sound Recorder, appears to record, but there is no sound on playback.
Audacity opens a file, but there is no sound when the play button is pressed. Simlarly, on record, there is no signal amplitude.
The X-CD-Roast test for /dev/dsp does not produce a sound.
KDE Control Center/Sound/Sound Server sound test does not produce a sound.

All these functioned normally until now.

The sound card works OK on Knoppix Linux and Windows.

I have searched for solutions without success so far.

Can anyone give me some clues on what has happened?
interesting problem
you didnot say which is your sound card!
now get a wav and a au(sun audio) file and try this
:::::
cat /dev/audio
cat /dev/dsp1
cat /dev/dsp
cat /dev/audio1
cat /dev/sndstat
particularly check the /dev/sndstat if your system recognizes a sound card
now suppose everything is ok
try a music file
say x.wav and x.au
do
cat x.au >/dev/audio or audio1
cat x.wav>/dev/dsp or dsp1(whichever is ok)
if there is any sound
just change your dsp setting in xmms and other audio players to dsp1
now another cause of your problem may be the jack of the speaker
remove the jack and try to use it in another
keep posted
 
Old 03-21-2003, 05:52 PM   #3
Johng
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Thank you rch for your valued help. I have tried the "cat" commands:

cat /dev/audio - fills terminal with "y" untill stopped
cat /dev/audio1 - "no such file or directory"

cat /dev/dsp - no reply - just hangs
cat /dev/dsp1 - "no such file or directory"

cat /dev/sndstat - "no such file or directory"

If I try a music file, cat x.au >/dev/audio and cat x.wav>/dev/dsp appear to play the audio file - the prompt returns after the time required to play the file, BUT there is no sound heard.

In the KDE Control Center/Sound/Sound Server the 'Sound I/O method' is set to 'autodetect'.

Incidentally, the bell in the terminal does not sound when I make an error - the bell moves but no sound.

The sound card is a Sound Blaster Live - there is no physical fault with it, because it does all these things under Windows and Knoppix Linux.


__________________
India Vs Australia Final
who will win? Go India!
 
Old 03-25-2003, 07:24 AM   #4
rch
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Quote:
Originally posted by Johng
Thank you rch for your valued help. I have tried the "cat" commands:

cat /dev/audio - fills terminal with "y" untill stopped
cat /dev/audio1 - "no such file or directory"

cat /dev/dsp - no reply - just hangs
cat /dev/dsp1 - "no such file or directory"

cat /dev/sndstat - "no such file or directory"

If I try a music file, cat x.au >/dev/audio and cat x.wav>/dev/dsp appear to play the audio file - the prompt returns after the time required to play the file, BUT there is no sound heard.

In the KDE Control Center/Sound/Sound Server the 'Sound I/O method' is set to 'autodetect'.

Incidentally, the bell in the terminal does not sound when I make an error - the bell moves but no sound.

The sound card is a Sound Blaster Live - there is no physical fault with it, because it does all these things under Windows and Knoppix Linux.


__________________
India Vs Australia Final
who will win? Go India!
ok bad luck Australia has won
(I don't like australian team either- aren't they fed up with winning all the time)
and a million apologies for not replying earlier
this is mainly becoz this post was not in the subscription list
i don't know what happened
now /dev/dsp is not working that means something wrong with the audio driver
your sound card is simply not being detected
good news though it is partially working /dev/audio is working
and if you do cat x.au>/dev/audio there must be some sound(even if too horrible to describe)
your sound card is supported by all linux distribution
so do a lsmod
see whether
soundcore
and your sound driver module is loaded
next reply would be a little faster
 
Old 03-26-2003, 05:22 AM   #5
Johng
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Hi rch

I tried cat x.au > /dev/audio (with no audio file with that name), and it failed - no such file or directory - there was no sound.

I tried cat x.au > /dev/audio (using an audio file with that name), it processed for the appropriate time, without emitting any sound.

I also tried cat x.au > /dev/dsp with same no sound.

lsmod returns "command not found".

Since I hear sound from the physical inputs (line and CD) could it be a wrong DMA or something?

Sorry about the cricket (NZ lost also!).

Cheers
 
Old 03-26-2003, 11:48 PM   #6
rch
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Quote:
Originally posted by Johng
Hi rch

I tried cat x.au > /dev/audio (with no audio file with that name), and it failed - no such file or directory - there was no sound.

I tried cat x.au > /dev/audio (using an audio file with that name), it processed for the appropriate time, without emitting any sound.

I also tried cat x.au > /dev/dsp with same no sound.

lsmod returns "command not found".

Since I hear sound from the physical inputs (line and CD) could it be a wrong DMA or something?

Sorry about the cricket (NZ lost also!).

Cheers
x.au must be a audio file
lsmod not working (what next !!!)
give me your /etc/modules.conf file
 
Old 03-26-2003, 11:51 PM   #7
rch
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and instead of lsmod you can also do
cat /proc/modules
 
Old 03-27-2003, 04:27 PM   #8
Johng
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/etc/modules/.conf

probeall scsi_hostadapter advansys ide-scsi
probeall usb-interface usb-uhci
above snd-emu10k1 snd-pcm-oss
alias sound-slot-0 snd-emu10k1

alias char-major-40 pt_drv
pre-install pt_drv modprobe -k parport
options pt_drv lampoff=180 warmup=15 port=0x378 lOffonEnd=0 mov=0 slowIO=1

options scanner vendor=0x04a9 product=2206


cat /proc/modules

ppp_deflate 41024 0 (autoclean)
bsd_comp 4344 0 (autoclean)
scanner 9140 0 (unused)
printer 6944 0 (unused)
lp 6720 0
parport_pc 21672 1
parport 23936 1 [lp parport_pc]
sr_mod 15096 0 (autoclean) (unused)
floppy 49340 0 (autoclean)
snd-seq-midi 3680 0 (autoclean) (unused)
snd-emu10k1-synth 4220 0 (autoclean) (unused)
snd-emux-synth 25532 0 (autoclean) [snd-emu10k1-synth]
snd-seq-midi-emul 4880 0 (autoclean) [snd-emux-synth]
snd-seq-virmidi 2888 0 (autoclean) [snd-emux-synth]
snd-seq-oss 26176 0 (unused)
snd-seq-midi-event 3208 0 [snd-seq-midi snd-seq-virmidi snd-seq-oss]
snd-seq 33264 2 [snd-seq-midi snd-emux-synth snd-seq-midi-emul snd-seq-virmidi
snd-seq-oss snd-seq-midi-event]
snd-pcm-oss 36932 0
snd-mixer-oss 9016 1 [snd-pcm-oss]
snd-emu10k1 56592 1 [snd-emu10k1-synth]
snd-pcm 55808 0 [snd-pcm-oss snd-emu10k1]
snd-timer 9964 0 [snd-seq snd-pcm]
snd-util-mem 1280 0 [snd-emux-synth snd-emu10k1]
snd-rawmidi 12864 0 [snd-seq-midi snd-seq-virmidi snd-emu10k1]
snd-seq-device 3836 0 [snd-seq-midi snd-emu10k1-synth snd-emux-synth snd-seq-oss
snd-seq snd-emu10k1 snd-rawmidi]
snd-ac97-codec 25508 0 [snd-emu10k1]
snd-hwdep 3840 0 [snd-emu10k1]
snd 24804 0 [snd-seq-midi snd-emux-synth snd-seq-virmidi snd-seq-oss
snd-seq-midi-event snd-seq snd-pcm-oss snd-mixer-oss snd-emu10k1 snd-pcm snd-timer snd-util-mem
snd-rawmidi snd-seq-device snd-ac97-codec snd-hwdep]
soundcore 3780 0 [snd]
ppp_async 7456 1
ppp_generic 20064 3 [ppp_deflate bsd_comp ppp_async]
slhc 5072 1 [ppp_generic]
af_packet 13000 0 (autoclean)
nls_iso8859-15 3356 1 (autoclean)
nls_cp850 3580 1 (autoclean)
vfat 9588 1 (autoclean)
fat 31864 0 (autoclean) [vfat]
supermount 14340 3 (autoclean)
ide-cd 28712 0
cdrom 26848 0 [sr_mod ide-cd]
ide-scsi 8212 0
usb-uhci 21676 0 (unused)
usbcore 58304 1 [scanner printer usb-uhci]
rtc 6560 0 (autoclean)
sd_mod 11612 0 (unused)
advansys 85132 0 (unused)
scsi_mod 91140 4 [sr_mod ide-scsi sd_mod advansys]
 
Old 03-28-2003, 09:56 AM   #9
rch
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Quote:
Originally posted by Johng
/etc/modules/.conf

probeall scsi_hostadapter advansys ide-scsi
probeall usb-interface usb-uhci
above snd-emu10k1 snd-pcm-oss
alias sound-slot-0 snd-emu10k1

alias char-major-40 pt_drv
pre-install pt_drv modprobe -k parport
options pt_drv lampoff=180 warmup=15 port=0x378 lOffonEnd=0 mov=0 slowIO=1

options scanner vendor=0x04a9 product=2206


cat /proc/modules

ppp_deflate 41024 0 (autoclean)
bsd_comp 4344 0 (autoclean)
scanner 9140 0 (unused)
printer 6944 0 (unused)
lp 6720 0
parport_pc 21672 1
parport 23936 1 [lp parport_pc]
sr_mod 15096 0 (autoclean) (unused)
floppy 49340 0 (autoclean)
snd-seq-midi 3680 0 (autoclean) (unused)
snd-emu10k1-synth 4220 0 (autoclean) (unused)
snd-emux-synth 25532 0 (autoclean) [snd-emu10k1-synth]
snd-seq-midi-emul 4880 0 (autoclean) [snd-emux-synth]
snd-seq-virmidi 2888 0 (autoclean) [snd-emux-synth]
snd-seq-oss 26176 0 (unused)
snd-seq-midi-event 3208 0 [snd-seq-midi snd-seq-virmidi snd-seq-oss]
snd-seq 33264 2 [snd-seq-midi snd-emux-synth snd-seq-midi-emul snd-seq-virmidi
snd-seq-oss snd-seq-midi-event]
snd-pcm-oss 36932 0
snd-mixer-oss 9016 1 [snd-pcm-oss]
snd-emu10k1 56592 1 [snd-emu10k1-synth]
snd-pcm 55808 0 [snd-pcm-oss snd-emu10k1]
snd-timer 9964 0 [snd-seq snd-pcm]
snd-util-mem 1280 0 [snd-emux-synth snd-emu10k1]
snd-rawmidi 12864 0 [snd-seq-midi snd-seq-virmidi snd-emu10k1]
snd-seq-device 3836 0 [snd-seq-midi snd-emu10k1-synth snd-emux-synth snd-seq-oss
snd-seq snd-emu10k1 snd-rawmidi]
snd-ac97-codec 25508 0 [snd-emu10k1]
snd-hwdep 3840 0 [snd-emu10k1]
snd 24804 0 [snd-seq-midi snd-emux-synth snd-seq-virmidi snd-seq-oss
snd-seq-midi-event snd-seq snd-pcm-oss snd-mixer-oss snd-emu10k1 snd-pcm snd-timer snd-util-mem
snd-rawmidi snd-seq-device snd-ac97-codec snd-hwdep]
soundcore 3780 0 [snd]
ppp_async 7456 1
ppp_generic 20064 3 [ppp_deflate bsd_comp ppp_async]
slhc 5072 1 [ppp_generic]
af_packet 13000 0 (autoclean)
nls_iso8859-15 3356 1 (autoclean)
nls_cp850 3580 1 (autoclean)
vfat 9588 1 (autoclean)
fat 31864 0 (autoclean) [vfat]
supermount 14340 3 (autoclean)
ide-cd 28712 0
cdrom 26848 0 [sr_mod ide-cd]
ide-scsi 8212 0
usb-uhci 21676 0 (unused)
usbcore 58304 1 [scanner printer usb-uhci]
rtc 6560 0 (autoclean)
sd_mod 11612 0 (unused)
advansys 85132 0 (unused)
scsi_mod 91140 4 [sr_mod ide-scsi sd_mod advansys]
you are using alsa
modify your modules.conf file
remove::
above snd-emu10k1 snd-pcm-oss
alias sound-slot-0 snd-emu10k1
add::
line starting with # are comments and could be ignored
Code:
# ALSA portion
        alias char-major-116 snd
        alias snd-card-0 snd-emu10k1
# module options should go here
#leave blank if you don't know what options are there
#for a midi support
#note use snd_id instead of id (second sound card)for old alsa #drivers
options  enable_midi="1"

 # OSS/Free portion
        alias char-major-14 soundcore
        alias sound-slot-0 snd-card-0
	
# card #1
	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
reboot::
install alsa utils and tools
see if they are already installed
rpm -qa|grep alsa
if they are not
install it from here
http://www.alsa-project.org
use any oss or alsamixer to change volume level
(your volumes are muted by default)
you can use your own preferances by editing
/etc/asound.state
and doing a
alsactl restore
keep posted
 
Old 03-28-2003, 05:36 PM   #10
Johng
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Hi rch

I did as you suggested - removed "above snd-emu10k1 snd-pcm-oss" and "alias sound-slot-0 snd-emu10k1"

I "copied and pasted" the script you supplied (from "#ALSA portion" to words above "reboot::"

When I rebooted, I was greeted with a Sound server informational message:
Error while initializing the sound card driver:
device /dev/dsp can't be opened (No such file or directory)
The sound server will continue, using the null output device.

AND neither the KMixer nor the Aumixer would open, which meant I could not play CD or line input.

I did rpm -qa | grep alsa and got:

alsa-lib-0.5.10b-2
libalsa2-0.9.0-0.8rc2mdk
alsamixergui-0.9.0-0.5rc1_2mdk
xmms-alsa-0.9.5-1mdk
libalsa-data-0.9.0-0.8rc2mdk
alsa-utils-0.9.0-0.6rc2mdk

I have restored the modules.conf file.

I found an old modules.conf file (dated Dec 2002) which looks identical to the current file. The loss of sound is a recent fault, which implies that the problem is not within the modules.conf file(?).

Thank you for hanging in there rch!
 
Old 03-28-2003, 11:56 PM   #11
rch
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Quote:
Originally posted by Johng
Hi rch

I did as you suggested - removed "above snd-emu10k1 snd-pcm-oss" and "alias sound-slot-0 snd-emu10k1"

I "copied and pasted" the script you supplied (from "#ALSA portion" to words above "reboot::"

When I rebooted, I was greeted with a Sound server informational message:
Error while initializing the sound card driver:
device /dev/dsp can't be opened (No such file or directory)
The sound server will continue, using the null output device.

AND neither the KMixer nor the Aumixer would open, which meant I could not play CD or line input.

I did rpm -qa | grep alsa and got:

alsa-lib-0.5.10b-2
libalsa2-0.9.0-0.8rc2mdk
alsamixergui-0.9.0-0.5rc1_2mdk
xmms-alsa-0.9.5-1mdk
libalsa-data-0.9.0-0.8rc2mdk
alsa-utils-0.9.0-0.6rc2mdk

I have restored the modules.conf file.

I found an old modules.conf file (dated Dec 2002) which looks identical to the current file. The loss of sound is a recent fault, which implies that the problem is not within the modules.conf file(?).

Thank you for hanging in there rch!
use the following script to make devices
Code:
#!/bin/bash

MAJOR=116
OSSMAJOR=14
MAX_CARDS=4
PERM=666
STATIC=0
OWNER=root.root

if [ "`grep -w -E "^audio" /etc/group`x" != x ]; then
  PERM=660
  OWNER=root.audio
fi

function create_odevice () {
  rm -f $1
  echo -n "Creating $1..."
  mknod -m $PERM $1 c $OSSMAJOR $2
  chown $OWNER $1
  echo " done"
}

function create_odevices () {
  tmp=0
  tmp1=0
  rm -f $1 $1?
  echo -n "Creating $1?..."
  while [ $tmp1 -lt $MAX_CARDS ]; do
    minor=$[ $2 + $tmp ]
    mknod -m $PERM $1$tmp1 c $OSSMAJOR $minor
    chown $OWNER $1$tmp1
    tmp=$[ $tmp + 16 ]
    tmp1=$[ $tmp1 + 1 ]
  done
  echo " done"
}

function create_device1 () {
  rm -f $1
  minor=$2
  echo -n "Creating $1..."
  mknod -m $PERM $1 c $MAJOR $minor
  chown $OWNER $1
  echo " done"
}

function create_devices () {
  tmp=0
  rm -f $1 $1?
  echo -n "Creating $1?..."
  while [ $tmp -lt $MAX_CARDS ]; do
    minor=$[ $tmp * 32 ]
    minor=$[ $2 + $minor ]
    mknod -m $PERM "${1}C${tmp}" c $MAJOR $minor
    chown $OWNER "${1}C${tmp}"
    tmp=$[ $tmp + 1 ]
  done
  echo " done"
}

function create_devices2 () {
  tmp=0
  rm -f $1 $1?
  echo -n "Creating $1??..."
  while [ $tmp -lt $MAX_CARDS ]; do
    tmp1=0
    while [ $tmp1 -lt $3 ]; do
      minor=$[ $tmp * 32 ]
      minor=$[ $2 + $minor + $tmp1 ]
      mknod -m $PERM "${1}C${tmp}D${tmp1}" c $MAJOR $minor
      chown $OWNER "${1}C${tmp}D${tmp1}"
      tmp1=$[ $tmp1 + 1 ]
    done
    tmp=$[ $tmp + 1 ]
  done
  echo " done"
}

if test "$1" = "-?" || test "$1" = "-h" || test "$1" = "--help"; then
  echo "Usage: snddevices [max]"
  exit
fi

if test "$1" = "max"; then
  DSP_MINOR=19
fi

# OSS (Lite) compatible devices...

if test $OSSMAJOR -eq 14; then
  create_odevices /dev/mixer		0
  create_odevice /dev/sequencer		1
  create_odevices /dev/midi		2
  create_odevices /dev/dsp		3
  create_odevices /dev/audio		4
  create_odevice /dev/sndstat		6
  create_odevice /dev/music		8
  create_odevices /dev/dmmidi		9
  create_odevices /dev/dmfm		10
  create_odevices /dev/amixer		11	# alternate mixer
  create_odevices /dev/adsp		12	# alternate dsp
  create_odevices /dev/amidi		13	# alternate midi
  create_odevices /dev/admmidi		14	# alternate direct midi
  # create symlinks
  ln -svf /dev/mixer0 /dev/mixer
  ln -svf /dev/midi0 /dev/midi
  ln -svf /dev/dsp0 /dev/dsp
  ln -svf /dev/audio0 /dev/audio
  ln -svf /dev/music /dev/sequencer2
  ln -svf /dev/adsp0 /dev/adsp
  ln -svf /dev/amidi0 /dev/amidi
fi

# New devices (obsolete now)...

mv -f /dev/sndstat /dev/1sndstat
rm -f /dev/snd*
mv -f /dev/1sndstat /dev/sndstat
if [ -d /dev/snd ]; then
  rm -f /dev/snd/*
  rmdir /dev/snd
fi
if [ $STATIC -gt 0 ]; then
  mkdir -p /dev/snd
  create_devices  /dev/snd/control	0
  create_device1  /dev/snd/seq		1
  create_devices2 /dev/snd/hw		2	4
  create_devices2 /dev/snd/mixer	6	2
  create_devices2 /dev/snd/pcm		16	16
  create_devices2 /dev/snd/midi		8	4
fi

# New dynamic sound device filesystem

if [ $STATIC -le 0 ]; then
  echo "ALSA dynamic sound device filesystem"
  ln -sfv /proc/asound/dev /dev/snd
fi

# Loader devices

echo "ALSA loader devices"
rm -f /dev/aload*
create_devices  /dev/aload		0
create_device1  /dev/aloadSEQ		1
create a file
name it devices.sh
copy the above script to the file
chmod it
chmod a+x devices.sh
run it from the shell
./devices.sh
 
Old 03-28-2003, 11:58 PM   #12
rch
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remember that you have to be root to run the script
 
Old 03-29-2003, 06:27 AM   #13
Johng
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Hi rch

Done that, and now I have sound!!!!!!

Functionally, I'm back to where I used to be.

Forgive my ignorance, but what have we (you) done to achieve this?

The only thing that does not work (and did not before) is a *.mid file - the Konqueror player complains that it "can't open /dev/sequencer - Probably there is another program using it". This is not a major problem, it's just that I noted the script file refers to /dev/sequencer.

Thank you very much for all the help you have given me.

I am baffled how/why I lost the sound - I don't recall doing anything so drastic.

Cheers

Johng
 
Old 03-30-2003, 12:29 AM   #14
rch
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Quote:
Originally posted by Johng
Hi rch

Done that, and now I have sound!!!!!!

Functionally, I'm back to where I used to be.

Forgive my ignorance, but what have we (you) done to achieve this?

The only thing that does not work (and did not before) is a *.mid file - the Konqueror player complains that it "can't open /dev/sequencer - Probably there is another program using it". This is not a major problem, it's just that I noted the script file refers to /dev/sequencer.

Thank you very much for all the help you have given me.

I am baffled how/why I lost the sound - I don't recall doing anything so drastic.

Cheers

Johng
I think the reason you had lost sound is the change is bootloader(if you have done so).I don't use Mandrake much but i know that by default it uses a device management system calle d devfs which usually supports the old /dev/ system but you
may have changed its config file.Devfs should contain reference
to /dev/dsp so i knew that creating (alsa) devices should solve the problem.
Finally you are welcome (if you think i have helped you,
you could have clicked on afferno if you wanted)
 
Old 03-30-2003, 12:37 AM   #15
rch
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and for the part of /dev/sequencer
don't use kde
it uses a sound deamon called arts which i think is a piece of junk
instead try gnome
 
  


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