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  1. #1
    Just Joined!
    Join Date
    Jul 2006
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    Australia
    Posts
    5

    Sound not working (usual suspects innocent)


    Dear all,
    I'm sorry to post such an oft-repeated topic, but I've done all I can, including hours of research, co-opting geeks, messing around with modules etc. No, the sound is not muted.
    This is my first install of debian; I'm running etch with kernel 2.6.18; I have gentoo at home (around which I know my way much better, strangely enough)

    Relevant information:
    Code:
    # lspci -v | grep audio
    00:1f.5 Multimedia audio controller: Intel Corporation 82801BA/BAM AC'97 Audio Controller (rev 04)
            Kernel modules: ipmi_si, i810_audio, snd-intel8x0
    Code:
    # cat /proc/asound/cards
     0 [I82801BAICH2   ]: ICH - Intel 82801BA-ICH2
                          Intel 82801BA-ICH2 with AD1981A at 0xc800, irq 185
    Code:
    # lsmod | grep snd
    snd_intel8x0           30332  1
    snd_ac97_codec         83104  1 snd_intel8x0
    snd_ac97_bus            2400  1 snd_ac97_codec
    snd_pcm_oss            38368  0
    snd_mixer_oss          15200  1 snd_pcm_oss
    snd_pcm                68676  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
    snd_timer              20996  1 snd_pcm
    snd                    47012  8 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
    soundcore               9248  1 snd
    snd_page_alloc         10184  2 snd_intel8x0,snd_pcm
    Code:
    # amixer scontents
    Simple mixer control 'Master',0
      Capabilities: pvolume pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 25 [81%] [on]
      Front Right: Playback 23 [74%] [on]
    Simple mixer control 'Master Mono',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined
      Playback channels: Mono
      Limits: Playback 0 - 31
      Mono: Playback 24 [77%] [on]
    Simple mixer control 'Headphone',0
      Capabilities: pvolume pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 24 [77%] [on]
      Front Right: Playback 24 [77%] [on]
    Simple mixer control 'Headphone Jack Sense',0
      Capabilities: pswitch pswitch-joined
      Playback channels: Mono
      Mono: Playback [on]
    Simple mixer control 'PCM',0
      Capabilities: pvolume pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 24 [77%] [on]
      Front Right: Playback 24 [77%] [on]
    Simple mixer control 'Line',0
      Capabilities: pvolume pswitch cswitch cswitch-exclusive
      Capture exclusive group: 0
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Front Left: Playback 0 [0%] [off] Capture [off]
      Front Right: Playback 0 [0%] [off] Capture [off]
    Simple mixer control 'Line Jack Sense',0
      Capabilities: pswitch pswitch-joined
      Playback channels: Mono
      Mono: Playback [off]
    Simple mixer control 'CD',0
      Capabilities: pvolume pswitch cswitch cswitch-exclusive
      Capture exclusive group: 0
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Front Left: Playback 24 [77%] [on] Capture [off]
      Front Right: Playback 24 [77%] [on] Capture [off]
    Simple mixer control 'Mic',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
      Capture exclusive group: 0
      Playback channels: Mono
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono: Playback 0 [0%] [off]
      Front Left: Capture [on]
      Front Right: Capture [on]
    Simple mixer control 'Mic Boost (+20dB)',0
      Capabilities: pswitch pswitch-joined
      Playback channels: Mono
      Mono: Playback [off]
    Simple mixer control 'Video',0
      Capabilities: cswitch cswitch-exclusive
      Capture exclusive group: 0
      Capture channels: Front Left - Front Right
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'Phone',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
      Capture exclusive group: 0
      Playback channels: Mono
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono: Playback 0 [0%] [off]
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'Aux',0
      Capabilities: pvolume pswitch cswitch cswitch-exclusive
      Capture exclusive group: 0
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Front Left: Playback 0 [0%] [off] Capture [off]
      Front Right: Playback 0 [0%] [off] Capture [off]
    Simple mixer control 'Capture',0
      Capabilities: cvolume cswitch
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 15
      Front Left: Capture 0 [0%] [on]
      Front Right: Capture 0 [0%] [on]
    Simple mixer control 'Mix',0
      Capabilities: cswitch cswitch-exclusive
      Capture exclusive group: 0
      Capture channels: Front Left - Front Right
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'Mix Mono',0
      Capabilities: cswitch cswitch-exclusive
      Capture exclusive group: 0
      Capture channels: Front Left - Front Right
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'External Amplifier',0
      Capabilities: pswitch pswitch-joined
      Playback channels: Mono
      Mono: Playback [on]
    The only thing I can see that looks strange (to me) -- and I have no idea what controls this -- is the fact that the "silence_size" (at the bottom of the output of aplay) is the same as the "boundary". But maybe that's normal, I don't know.
    testing the sound using aplay:
    Code:
    # aplay -vv sample.au
    Playing Sparc Audio 'sample.au' : Mu-Law, Rate 8000 Hz, Mono
    Plug PCM: Mu-Law conversion PCM (S16_LE)
    Its setup is:
      stream       : PLAYBACK
      access       : RW_INTERLEAVED
      format       : MU_LAW
      subformat    : STD
      channels     : 1
      rate         : 8000
      exact rate   : 8000 (8000/1)
      msbits       : 8
      buffer_size  : 2730
      period_size  : 170
      period_time  : 21333
      tick_time    : 0
      tstamp_mode  : NONE
      period_step  : 1
      sleep_min    : 0
      avail_min    : 170
      xfer_align   : 170
      start_threshold  : 2720
      stop_threshold   : 2730
      silence_threshold: 0
      silence_size : 0
      boundary     : 178913280
    Slave: Rate conversion PCM (48000, sformat=S16_LE)
    Its setup is:
      stream       : PLAYBACK
      access       : MMAP_INTERLEAVED
      format       : S16_LE
      subformat    : STD
      channels     : 1
      rate         : 8000
      exact rate   : 8000 (8000/1)
      msbits       : 16
      buffer_size  : 2730
      period_size  : 170
      period_time  : 21333
      tick_time    : 0
      tstamp_mode  : NONE
      period_step  : 1
      sleep_min    : 0
      avail_min    : 170
      xfer_align   : 170
      start_threshold  : 2720
      stop_threshold   : 2730
      silence_threshold: 0
      silence_size : 0
      boundary     : 178913280
    Slave: Route conversion PCM (sformat=S16_LE)
      Transformation table:
        0 <- 0
        1 <- 0
    Its setup is:
      stream       : PLAYBACK
      access       : MMAP_INTERLEAVED
      format       : S16_LE
      subformat    : STD
      channels     : 1
      rate         : 48000
      exact rate   : 48000 (48000/1)
      msbits       : 16
      buffer_size  : 16384
      period_size  : 1024
      period_time  : 21333
      tick_time    : 0
      tstamp_mode  : NONE
      period_step  : 1
      sleep_min    : 0
      avail_min    : 1024
      xfer_align   : 1024
      start_threshold  : 16384
      stop_threshold   : 16384
      silence_threshold: 0
      silence_size : 0
      boundary     : 1073741824
    Slave: Direct Stream Mixing PCM
    Its setup is:
      stream       : PLAYBACK
      access       : MMAP_INTERLEAVED
      format       : S16_LE
      subformat    : STD
      channels     : 2
      rate         : 48000
      exact rate   : 48000 (48000/1)
      msbits       : 16
      buffer_size  : 16384
      period_size  : 1024
      period_time  : 21333
      tick_time    : 0
      tstamp_mode  : NONE
      period_step  : 1
      sleep_min    : 0
      avail_min    : 1024
      xfer_align   : 1024
      start_threshold  : 16384
      stop_threshold   : 16384
      silence_threshold: 0
      silence_size : 0
      boundary     : 1073741824
    Hardware PCM card 0 'Intel 82801BA-ICH2' device 0 subdevice 0
    Its setup is:
      stream       : PLAYBACK
      access       : MMAP_INTERLEAVED
      format       : S16_LE
      subformat    : STD
      channels     : 2
      rate         : 48000
      exact rate   : 48000 (48000/1)
      msbits       : 16
      buffer_size  : 16384
      period_size  : 1024
      period_time  : 21333
      tick_time    : 4000
      tstamp_mode  : NONE
      period_step  : 1
      sleep_min    : 0
      avail_min    : 1024
      xfer_align   : 1024
      start_threshold  : 1
      stop_threshold   : 1073741824
      silence_threshold: 0
      silence_size : 1073741824
      boundary     : 1073741824
    ##################################################+| 100% !clip
    Help much appreciated.
    Last edited by algorhythm; 02-19-2008 at 05:39 AM. Reason: added card info

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