troubleshooting sound problems

Tomoki Taniguchi tomoki.taniguchi at gmail.com
Sun Feb 17 03:35:52 UTC 2008 

sound isn't working at all

results from hwinfo --sound
<snip>
20: PCI 1f.5: 0401 Multimedia audio controller
  [Created at pci.281]
  UDI: /org/freedesktop/Hal/devices/pci_8086_24c5
  Unique ID: W60f.3l4z2BlRD+7
  SysFS ID: /devices/pci0000:00/0000:00:1f.5
  SysFS BusID: 0000:00:1f.5
  Hardware Class: sound
  Model: "Matsushita Electric Industrial 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x24c5 "82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio
Controller"
  SubVendor: pci 0x10f7 "Matsushita Electric Industrial Co., Ltd."
  SubDevice: pci 0x8346
  Revision: 0x03
  Driver: "Intel ICH"
  Driver Modules: "snd_intel8x0"
  I/O Ports: 0x1c00-0x1cff (rw)
  I/O Ports: 0x1880-0x18bf (rw)
  Memory Range: 0xe0100c00-0xe0100dff (rw,non-prefetchable)
  Memory Range: 0xe0100800-0xe01008ff (rw,non-prefetchable)
  IRQ: 9 (16664 events)
  Module Alias: "pci:v00008086d000024C5sv000010F7sd00008346bc04sc01i00"
  Driver Info #0:
    Driver Status: i810_audio is not active
    Driver Activation Cmd: "modprobe i810_audio"
  Driver Info #1:
    Driver Status: snd_intel8x0 is active
    Driver Activation Cmd: "modprobe snd_intel8x0"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
<snip>

i noticed that i810_audio is not active.
so i ran "modprobe i810_audio" but still didn't get any sound

results from "lsmod | grep snd" prior to loading i810_audio
<snip>
snd_intel8x0           30332  1
snd_pcm_oss            38368  0
snd_mixer_oss          15200  1 snd_pcm_oss
snd_intel8x0m          15980  0
snd_ac97_codec         83104  2 snd_intel8x0,snd_intel8x0m
snd_ac97_bus            2400  1 snd_ac97_codec
snd_pcm                68676  4
snd_intel8x0,snd_pcm_oss,snd_intel8x0m,snd_ac97_codec
snd_timer              20996  1 snd_pcm
snd                    47012  9
snd_intel8x0,snd_pcm_oss,snd_mixer_oss,snd_intel8x0m,snd_ac97_codec,snd_pcm,snd_timer
soundcore               9248  1 snd
snd_page_alloc         10184  3 snd_intel8x0,snd_intel8x0m,snd_pcm
<snip>

post loading i810_audio
<snip>
snd_intel8x0           30332  1
snd_pcm_oss            38368  0
snd_mixer_oss          15200  1 snd_pcm_oss
snd_intel8x0m          15980  0
snd_ac97_codec         83104  2 snd_intel8x0,snd_intel8x0m
snd_ac97_bus            2400  1 snd_ac97_codec
snd_pcm                68676  4
snd_intel8x0,snd_pcm_oss,snd_intel8x0m,snd_ac97_codec
snd_timer              20996  1 snd_pcm
snd                    47012  9
snd_intel8x0,snd_pcm_oss,snd_mixer_oss,snd_intel8x0m,snd_ac97_codec,snd_pcm,snd_timer
soundcore               9248  2 i810_audio,snd
snd_page_alloc         10184  3 snd_intel8x0,snd_intel8x0m,snd_pcm
<snip>

results from amixer
<snip>
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 17 [55%] [on]
  Front Right: Playback 17 [55%] [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 pswitch-joined
  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 '3D Control - Center',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 28 [90%] [on]
  Front Right: Playback 28 [90%] [on]
Simple mixer control 'PCM Out Path & Mute',0
  Capabilities: enum
  Items: 'pre 3D' 'post 3D'
  Item0: 'pre 3D'
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined 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 17 [55%] [on] Capture [off]
  Front Right: Playback 17 [55%] [on] Capture [off]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch pswitch-joined 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 25 [81%] [on] Capture [off]
  Front Right: Playback 25 [81%] [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 'Mic Select',0
  Capabilities: enum
  Items: 'Mic1' 'Mic2'
  Item0: 'Mic1'
Simple mixer control 'Video',0
  Capabilities: pvolume pswitch pswitch-joined 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 21 [68%] [off] Capture [off]
  Front Right: Playback 21 [68%] [off] 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 11 [35%] [off]
  Front Left: Capture [off]
  Front Right: Capture [off]
Simple mixer control 'PC Speaker',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 15
  Mono: Playback 8 [53%] [on]
Simple mixer control 'Aux',0
  Capabilities: pvolume pswitch pswitch-joined 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 11 [35%] [off] Capture [off]
  Front Right: Playback 11 [35%] [off] Capture [off]
Simple mixer control 'Mono Output Select',0
  Capabilities: enum
  Items: 'Mix' 'Mic'
  Item0: 'Mix'
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  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 [off]
<snip>

i still don't get any sound.
is there something i can do?

TIA,
Tomoki

More information about the ubuntu-users mailing list