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Old 03-17-2007, 11:49 AM   #1
bad_zeppelin
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Registered: Sep 2005
Location: Odense, Denmark
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sound recording problem - snd-hda-intel

hello folks,

I have a Fujitsu-Siemens Amilo Pa1510 laptop with a soundcard which lspci identifies as:

Code:
00:14.2 Audio device: ATI Technologies Inc SB450 HDA Audio (rev 01)
        Subsystem: Fujitsu Siemens Computer GmbH Unknown device 10b8
        Flags: bus master, slow devsel, latency 64, IRQ 201
        Memory at c0000000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
I have absolutely no problem with sound output but when it comes recording sound I just can't get anything working. Skype doesn't record anything and acrecord only creates a dummy 44-byte file. I don't know how it happened but when I was playing around with some mixer settings, .asoundrc configurations, I managed to get sound recording work for a couple of times. But again, it stopped working for no obvious reason.
I can hear my voice from the mic when I unmute the mic channel in playback, but still there is no recording.

I would be very happy if someone knows the reason for this problem. I saw some similiar problems and solutions in this forum but they didn't work for me.

Thanks

PS:
some information about the system

Here is what amixer reports:
Code:
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 229 [90%] [-5.20dB]
  Front Right: Playback 229 [90%] [-5.20dB]
Simple mixer control 'Front',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 23
  Mono:
  Front Left: Playback 14 [61%] [6.00dB] [on]
  Front Right: Playback 14 [61%] [6.00dB] [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 23
  Mono:
  Front Left: Playback 23 [100%] [33.00dB] [off]
  Front Right: Playback 23 [100%] [33.00dB] [off]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 13
  Front Left: Capture 13 [100%] [33.00dB] [on]
  Front Right: Capture 13 [100%] [33.00dB] [on]
Simple mixer control 'Caller ID',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Input Source',0
  Capabilities: enum
  Items: 'Mic' 'CD'
  Item0: 'Mic'
Simple mixer control 'Off-hook',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
This is the output of aadebug script I have found on the net:

Code:
ALSA Audio Debug v0.1.0 - Cts Mar 17 17:44:36 EET 2007
http://alsa.opensrc.org/aadebug
http://www.gnu.org/licenses/gpl.txt

Kernel ----------------------------------------------------
Linux gondolin 2.6.18.8-80 #2 SMP Thu Mar 8 16:57:46 EET 2007 i686 AMD Turion(tm) 64 X2 Mobile Technology TL-50 GNU/Linux

Loaded Modules --------------------------------------------
snd_pcm_oss            41568  0
snd_mixer_oss          16128  1 snd_pcm_oss
snd_seq_dummy           4100  0
snd_seq_oss            31424  0
snd_seq_midi_event      7040  1 snd_seq_oss
snd_seq                47440  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          7916  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_hda_intel          19572  5
snd_hda_codec         151600  1 snd_hda_intel
snd_pcm                71908  4 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer              21924  3 snd_seq,snd_pcm
snd                    49732  18 snd_pcm_oss,snd_mixer_oss,snd_seq_dummy,snd_seq_oss,snd_seq,snd_seq_device,snd_hda_intel,snd_hda_codec,snd_pcm,snd_timer
snd_page_alloc          9864  2 snd_hda_intel,snd_pcm

Proc Config -----------------------------------------------
CONFIG_SOUND=y
# CONFIG_SND is not set
# CONFIG_SOUND_PRIME is not set

Modprobe Conf ---------------------------------------------
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss
alias /dev/mixer snd-mixer-oss
alias char-major-116-* snd
alias char-major-14-* soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
options snd cards_limit=1

Proc Asound -----------------------------------------------
Advanced Linux Sound Architecture Driver Version 1.0.13.
Compiled on Mar  8 2007 for kernel 2.6.18.8-80 (SMP).
 0 [SB             ]: HDA-Intel - HDA ATI SB
                      HDA ATI SB at 0xc0000000 irq 201
  0: [ 0]   : control
  1:        : sequencer
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 22: [ 0- 6]: digital audio playback
 24: [ 0- 0]: digital audio capture
 30: [ 0- 6]: digital audio capture
 33:        : timer
cat: /proc/asound/hwdep: Böyle bir dosya ya da dizin yok
00-06: Si3054 Modem : Si3054 Modem : playback 1 : capture 1
00-01: ALC861 Digital : ALC861 Digital : playback 1
00-00: ALC861 Analog : ALC861 Analog : playback 1 : capture 2
Client info
  cur  clients : 3
  peak clients : 3
  max  clients : 192

Client   0 : "System" [Kernel]
  Port   0 : "Timer" (Rwe-)
  Port   1 : "Announce" (R-e-)
    Connecting To: 15:0
Client  14 : "Midi Through" [Kernel]
  Port   0 : "Midi Through Port-0" (RWe-)
Client  15 : "OSS sequencer" [Kernel]
  Port   0 : "Receiver" (-we-)
    Connected From: 0:1

Dev Snd ---------------------------------------------------
controlC0  pcmC0D0c  pcmC0D0p  pcmC0D1p  pcmC0D6c  pcmC0D6p  seq  timer

CPU -------------------------------------------------------
model name      : AMD Turion(tm) 64 X2 Mobile Technology TL-50
cpu MHz         : 800.000
model name      : AMD Turion(tm) 64 X2 Mobile Technology TL-50
cpu MHz         : 800.000

RAM -------------------------------------------------------
MemTotal:       903948 kB
SwapTotal:      514072 kB

Hardware --------------------------------------------------
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 10)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
 
Old 03-18-2007, 05:00 AM   #2
Larry Webb
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In the mixer control under the input tab make sure the "capture" is switch is lit or on. I think my slider volume has to be to the bottom. If you can hear sound through your mic it should record, it's a matter of getting the switches and slider volumes in the right position.
 
Old 03-18-2007, 11:47 AM   #3
bad_zeppelin
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Original Poster
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the capture channel is on and input source is selected as mic, as you can see from the mixer data I posted. It still doesn't work, and driving me nuts.
 
Old 03-18-2007, 03:33 PM   #4
Larry Webb
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Try Google and use Keywords "no sound laptop". I read some where a the person had the same apparent problem although if I remmember it was a Compaq. He posted all of his switch positions. There also was a remark that if you can hear the mic through the speaker it will record.
 
Old 03-19-2007, 03:21 PM   #5
bad_zeppelin
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well, i could finally manage to do something. when i added the line "options snd-hda-intel model=ref" to /etc/modules.d/alsa file i can record now. but with very low volume(anyways this is a big advance for me ).

does anybody have any clue about how i can get the recording volume higher? the capture volume in the mixer is at full.

thanks
 
Old 03-19-2007, 05:15 PM   #6
Larry Webb
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In the mixer under switches see if you have a "mic boost" that you can turn on. My mic doesn't record as high as I would like.
 
  


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