[Bug 10155] sound still comes out of speakers when PCM volume is set to 0

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Ubuntu | linux





------- Additional Comments From manuellopezibanez at yahoo.es  2005-11-10 15:05 UTC -------
In mi case it occurs with any of Master or PCM, if one of them is not zero, then
there is sound.

manu@~ $ cat /proc/asound/cards
0 [ICH5           ]: ICH4 - Intel ICH5
                     Intel ICH5 with AD1985 at 0xfebff800, irq 17

$ amixer  ## Normal (there is sound)
manu@~ $ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 15 [48%] [on]
  Front Right: Playback 15 [48%] [on]
Simple mixer control 'Master Mono',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [off]
Simple mixer control 'Master Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [off]
  Front Right: Playback 0 [0%] [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 14 [45%] [on]
  Front Right: Playback 14 [45%] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [off]
  Front Right: Playback 0 [0%] [off]
Simple mixer control 'Surround Jack Mode',0
  Capabilities:
  Mono:
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [off]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch cswitch cswitch-joined 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 'CD',0
  Capabilities: pvolume pswitch cswitch cswitch-joined 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 31 [100%] [on] Capture [on]
  Front Right: Playback 31 [100%] [on] Capture [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch
cswitch-joined 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 'Mic Boost (+20dB)',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Mic Select',0
  Capabilities:
  Mono:
Simple mixer control 'Video',0
  Capabilities: cswitch cswitch-joined 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-joined 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 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Playback AC97-SPSA',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Limits: 0 - 3
  Mono: 0 [0%]
Simple mixer control 'IEC958 Playback Source',0
  Capabilities:
  Mono:
Simple mixer control 'PC Speaker',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 15
  Mono: Playback 0 [0%] [off]
Simple mixer control 'Aux',0
  Capabilities: pvolume pswitch cswitch cswitch-joined 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 'Mono Output Select',0
  Capabilities:
  Mono:
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 0 [0%] [off]
  Front Right: Capture 0 [0%] [off]
Simple mixer control 'Mix',0
  Capabilities: cswitch cswitch-joined 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-joined cswitch-exclusive
  Capture exclusive group: 0
  Capture channels: Front Left - Front Right
  Front Left: Capture [off]
  Front Right: Capture [off]
Simple mixer control 'Channel Mode',0
  Capabilities:
  Mono:
Simple mixer control 'Downmix',0
  Capabilities:
  Mono:
Simple mixer control 'Exchange Center/LFE',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Exchange Front/Surround',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'External Amplifier',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Spread Front to Surround and Center/LFE',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Stereo Mic',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]

$ amixer (Master set to zero, yet there IS sound)
@@ -2,8 +2,8 @@
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
-  Front Left: Playback 13 [42%] [on]
-  Front Right: Playback 13 [42%] [on]
+  Front Left: Playback 0 [0%] [on]
+  Front Right: Playback 0 [0%] [on]
 Simple mixer control 'Master Mono',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
   Playback channels: Mono


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