[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[Joachim R.]

CMI8738 is not well-supported by alsa.

Running with a center channel volume issue (center volume constant,
whatever the master volume).

I found out that master volume worked only for front/rear channel, not
center which stick to its initial value.

Pulseaudio volume for separate channel are not effectless.

amixer set no gauge for center/lfe, hence impossible to change it.

Seems that with this chip, when in 5.1 mic is not available and Mic-in
and center/lfe is on the same control.

I don't know if alsa is wrong or if CMI8738 is just a crap.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/104617

Title:
  CMI8738 5.1 center speaker is mute

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/104617/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[Launchpad Janitor]

[Expired for alsa-utils (Ubuntu) because there has been no activity for
60 days.]

-- 
CMI8738 5.1 center speaker is mute
https://bugs.launchpad.net/bugs/104617
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[Mario Minati]

I am discovering a similar problem, originally posted here:
https://answers.launchpad.net/ubuntu/+question/7468

I used the speaker-test utility to check out my config (which is based
on the alsa soundcard wiki entry for cmipci and the mythtv wiki).

speaker-test -t wav -c 6 -D surround51
- The sound is on the expected speakers, but the volume control is not ok. 
Master controls front left and right, PCM controls front left and right and 
rear left and right, there is no way to control center and LFE with alsamixer.

speaker-test -t wav -c 2 -D 20to51
- Works nearly as expected, except that one rear channel doesn't provide any 
sound. And there is no volume control for center and LFE either.

Tests only involving two channels like speaker-test -t wav -c 2 -D test
(or -c 6) work like expected. Sound on front left and right, control
with master and PCM is possible.

The output of the alsa-info script is attached.

** Attachment added: Result of alsa-info script
   http://librarian.launchpad.net/7899207/525222.txt

-- 
CMI8738 5.1 center speaker is mute
https://bugs.launchpad.net/bugs/104617
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[Sebastien Bacher]

** Changed in: alsa-utils (Ubuntu)
Sourcepackagename: gnome-media = alsa-utils

-- 
CMI8738 5.1 center speaker is mute
https://bugs.launchpad.net/bugs/104617
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[Daniel T Chen]

Please provide the information requested from
http://wiki.ubuntu.com/DebuggingSoundProblems

** Changed in: alsa-utils (Ubuntu)
   Importance: Undecided = Low
   Status: Unconfirmed = Needs Info

-- 
CMI8738 5.1 center speaker is mute
https://bugs.launchpad.net/bugs/104617
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 104617] Re: CMI8738 5.1 center speaker is mute

[ondo]

# tail -2 /proc/asound/oss/sndstat
Mixers:
0: CMedia PCI



# amixer
Simple mixer control 'Master',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 24 [77%]
  Front Right: Playback 24 [77%]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined cswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 22 [71%] [on] Capture [off]
  Front Right: Playback 22 [71%] [on] Capture [off]
Simple mixer control 'Synth',0
  Capabilities: pvolume pswitch pswitch-joined cswitch
  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 'Line',0
  Capabilities: pvolume pswitch cswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [on] Capture [off]
  Front Right: Playback 0 [0%] [on] Capture [off]
Simple mixer control 'Line-In Mode',0
  Capabilities: enum
  Items: 'Line-In' 'Rear Output' 'Bass Output'
  Item0: 'Line-In'
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch cswitch
  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 cvolume pswitch pswitch-joined cswitch 
cswitch-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: Playback 0 - 31 Capture 0 - 7
  Mono: Playback 0 [0%] [off] Capture 0 [0%] [off]
Simple mixer control 'Mic Boost',0
  Capabilities: pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Mono
  Capture channels: Mono
  Mono: Playback [on] Capture [off]
Simple mixer control 'Mic-In Mode',0
  Capabilities: enum
  Items: 'Mic-In' 'Center/LFE Output'
  Item0: 'Mic-In'
Simple mixer control 'Phone',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 7
  Mono: Playback 0 [0%] [on]
Simple mixer control 'IEC958 5V',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 Copyright',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 In Monitor',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 In Phase Inverse',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 In Select',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 In Valid',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 Loop',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 Output',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'PC Speaker',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 3
  Mono: Playback 2 [67%] [on]
Simple mixer control 'Aux',0
  Capabilities: pvolume pswitch cswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 15
  Front Left: Playback 0 [0%] [on] Capture [off]
  Front Right: Playback 0 [0%] [on] Capture [off]
Simple mixer control 'Four Channel Mode',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'SoftMaster',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 255
  Front Left: 175 [69%]
  Front Right: 175 [69%]
##

# lspci -nv
00:00.0 0600: 8086:1a30 (rev 03)
Flags: bus master, fast devsel, latency 0
Memory at f800 (32-bit, prefetchable) [size=64M]
Capabilities: [e4] Vendor Specific Information
Capabilities: [a0] AGP version 2.0

00:01.0 0604: 8086:1a31 (rev 03)
Flags: bus master, 66MHz, fast devsel, latency 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
Memory behind bridge: fd00-fe1f
Prefetchable memory behind bridge: f5e0-f7ff

00:1e.0 0604: 8086:244e (rev 12)
Flags: bus master, fast devsel, latency 0
Bus: