No sound after upgrade to 12.04

Note that when testing sound I used:
$ aplay /usr/share/sounds/alsa/Front_Center.wav
with both builtin speakers and headphones.
I heard no sound.

and sound in pavucontrol is also at 100%

Please open alsamixer in a Terminal and use alsamixer to unmute and increase volume on the following mixer channels for "Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 47 Analog Devices AD1981' :

Simple mixer control 'Mic',0
Simple mixer control 'Mix',0

Please open alsamixer in a Terminal and use alsamixer to unmute and increase volume on the following mixer channel for "Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 79HT50WW-1.07'"

Simple mixer control 'Console',0

Then also try increasing volume using the hardware keys on your Thinkpad.....

If this does not help, then your PC is experiencing the following bug, for which there is no solution yet:

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1022128

Thanks for the information.

> Simple mixer control 'Mic',0
I should increase the microphone level? I am surprised that would help the sound output...

For "Mix" Alsamixer displays:
Item: Mix [Off]
Is there a way to turn this on? I did not find an option in the help screen.

Thanks for pointing me to that related bug

More info about alsamixer is here:

http://en.wikipedia.org/wiki/Alsamixer

Mixer Views

The top-left corner of alsamixer is the area to show some basic information: the card name, the mixer chip name, the current view mode and the currently selected mixer item. When the mixer item is switched off, [Off] is displayed in its name.

Volume bars are located below the basic information area. You can scroll left/right when all controls can't be put in a single screen. The name of each control is shown in the bottom below the volume bars. The currently selected item is drawn in red and/or emphasized.

Each mixer control with volume capability shows a box and the current volume filled in that box. The volume percentages are displayed below the volume bar for left and right channels. For a mono control, only one value is shown there.

When a mixer control is turned off, M (mute) appears below the volume bar. When it's turned on, O in green appears instead. You can toggle the switch via m key.

When a mixer control has capture capability, the capture flag appears below the volume bar, too. When the capture is turned off, ------- is shown. CAPTURE in red appears when the capture switch is turned on. In addition, L and R letters appear in left and right side to indicate that left and the right channels are turned on.

Some controls have the enumeration list, and don't show boxes but only texts which indicate the currently active item. You can change the item via up/down keys.

[edit]View Modes

alsamixer has three view modes: playback, capture and all. In the playback view, only the controls related with playback are shown. Similarly, only the controls for capture (recording) are shown in the capture view. The all view mode shows all controls. The current view mode is displayed in the top-left position together with the mixer name, etc.

The default view mode is the playback view. You can change it via -V option.

Each view mode can be switched via keyboard commands, too. See the next section.

[edit]Keyboard Commands

alsamixer recognizes the following keyboard commands to control the soundcard. Commands shown here in upper case can also be given in lower case. To be reminded of these keystrokes, hit the h key.

[edit]General Controls
The Left and right arrow keys are used to select the channel (or device, depending on your preferred terminology). You can also use n ("next") and p ("previous").

The Up and Down Arrows control the volume for the currently selected device. You can also use + or - for the same purpose. Both the left and right signals are affected. To control them independently, use Q to increase and Z to decrease the volume on the left channel. E increases the volume of the right channel and C decreases it.

M toggles muting for the current channel (both left and right). If the hardware supports it, you can mute left and right independently by using, (or <) and . (or >) respectively.

SPACE enables recording for the current channel. If any other channels have recording enabled, they will have their recording function disabled first. This only works for valid input channels, of course.

L re-draws the screen.

[edit]View Mode Controls
Function keys are used to change view modes. You can switch to the help mode and the proc info mode via F1 and F2 keys, respectively. On terminals that can't use function keys like GNOME Terminal, ? and / keys can be used alternatively for help and proc modes.

F3, F4 and F5 keys are used to switch to playback, capture and all view mode, respectively. Tab key toggles the current view mode circularly.

[edit]Exiting
Quit the program with ALT+Q, or by hitting the Esc key. Please note that you might need to hit ESC twice on some terminals since it's regarded as a prefix key.

Press F6 to switch between sound cards, if you have several sound cards.

Google.com should be your best friend.

!!################################
!!ALSA Information Script v 0.4.61
!!################################

!!Script ran on: Sat Oct 20 08:59:18 UTC 2012

!!Linux Distribution
!!------------------

Ubuntu 12.04.1 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"

!!DMI Information
!!---------------

Manufacturer: LENOVO
Product Name: 6369A56
Product Version: ThinkPad T60
Firmware Version: 7IET30WW (1.11 )

!!Kernel Information
!!------------------

Kernel release: 3.2.0-32-generic
Operating System: GNU/Linux
Architecture: i686
Processor: i686
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: 1.0.24
Library version: 1.0.25
Utilities version: 1.0.25

!!Loaded ALSA modules
!!-------------------

snd_hda_intel
thinkpad_acpi

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

ESound Daemon:
      Installed - Yes (/usr/bin/esd)
      Running - No

!!Soundcards recognised by ALSA
!!-----------------------------

 0 [Intel ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xee240000 irq 47
29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control
                      ThinkPad Console Audio Control at EC reg 0x30, fw 79HT50WW-1.07

!!PCI Soundcards installed in the system
!!--------------------------------------

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------

00:1b.0 0403: 8086:27d8 (rev 02)
 Subsystem: 17aa:2010

!!Modprobe options (Sound related)
!!--------------------------------

snd-atiixp-modem: index=-2
snd-intel8x0m: index=-2
snd-via82xx-modem: index=-2
snd-usb-audio: index=-2
snd-usb-caiaq: index=-2
snd-usb-ua101: index=-2
snd-usb-us122l: index=-2
snd-usb-usx2y: index=-2
snd-cmipci: mpu_port=0x330 fm_port=0x388
snd-pcsp: index=-2
snd-usb-audio: index=-2

!!Loaded sound module options
!!---------------------------

!!Module: snd_hda_intel
 align_buffer_size : Y
 bdl_pos_adj : 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 beep_mode : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
 enable_msi : -1
 id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 model : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 patch : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 position_fix : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 power_save : 0
 power_save_controller : Y
 probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 probe_only : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 single_cmd : N
 snoop : Y

!!Module: thinkpad_acpi
 brightness_enable : 2
 brightness_mode : 4
 dbg_bluetoothemul : 0
 dbg_uwbemul : 0
 dbg_wlswemul : 0
 dbg_wwanemul : 0
 enable : Y
 experimental : 0
 fan_control : N
 force_load : N
 hotkey_report_mode : 0
 id : ThinkPadEC
 index : -536870912
 volume_capabilities : 0
 volume_control : N
 volume_mode : 3

!!HDA-Intel Codec information
!!---------------------------
--startcollapse--

Codec: Analog Devices AD1981
Address: 0
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x11d41981
Subsystem Id: 0x17aa2025
Revision Id: 0x100200
No Modem Function Group found
Default PCM:
    rates [0x7f]: 8000 11025 16000 22050 32000 44100 48000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Default Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
Default Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
GPIO: io=4, o=0, i=0, unsolicited=1, wake=0
  IO[0]: enable=0, dir=0, wake=0, sticky=0, data=1, unsol=0
  IO[1]: enable=0, dir=0, wake=0, sticky=0, data=1, unsol=0
  IO[2]: enable=0, dir=0, wake=0, sticky=0, data=1, unsol=0
  IO[3]: enable=0, dir=0, wake=0, sticky=0, data=1, unsol=0
Node 0x02 [Audio Output] wcaps 0x30311: Stereo Digital
  Control: name="IEC958 Playback Con Mask", index=0, device=0
  Control: name="IEC958 Playback Pro Mask", index=0, device=0
  Control: name="IEC958 Playback Default", index=0, device=0
  Control: name="IEC958 Playback Switch", index=0, device=0
  Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
  Control: name="IEC958 Playback Source", index=0, device=0
  Device: name="AD198x Digital", type="SPDIF", device=1
  Converter: stream=0, channel=0
  Digital:
  Digital category: 0x0
  PCM:
    rates [0x60]: 44100 48000
    bits [0x2]: 16
    formats [0x5]: PCM AC3
  Delay: 3 samples
  Connection: 2
     0x01* 0x04
Node 0x03 [Audio Output] wcaps 0x441: Stereo
  Device: name="AD198x Analog", type="Audio", device=0
  Converter: stream=0, channel=0
  Power states: D0 D3
  Power: setting=D0, actual=D0
  Processing caps: benign=1, ncoeff=70
Node 0x04 [Audio Input] wcaps 0x100511: Stereo
  Device: name="AD198x Analog", type="Audio", device=0
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x7f]: 8000 11025 16000 22050 32000 44100 48000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Power states: D0 D3
  Power: setting=D0, actual=D0
  Connection: 1
     0x15
Node 0x05 [Pin Complex] wcaps 0x400187: Stereo Amp-In Amp-Out
  Control: name="Master Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Master Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals: [0x00 0x00]
  Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
  Amp-Out vals: [0x3f 0x3f]
  Pincap 0x0001173f: IN OUT HP EAPD Detect Trigger ImpSense
    Vref caps: HIZ 50 GRD 80
  EAPD 0x0:
  Pin Default 0xc3014110: [Both] Line Out at Ext Left
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT VREF_HIZ
  Unsolicited: tag=00, enabled=0
  Connection: 2
     0x03 0x0e*
Node 0x06 [Pin Complex] wcaps 0x400185: Stereo Amp-Out
  Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Pincap 0x0000001f: OUT HP Detect Trigger ImpSense
  Pin Default 0x422140f0: [N/A] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0xc0: OUT HP
  Unsolicited: tag=00, enabled=0
  Connection: 2
     0x03 0x0e*
Node 0x07 [Pin Complex] wcaps 0x400104: Mono Amp-Out
  Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80]
  Pincap 0x00000010: OUT
  Pin Default 0x591311f0: [N/A] Speaker at Int ATAPI
    Conn = ATAPI, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Connection: 1
     0x0f
Node 0x08 [Pin Complex] wcaps 0x400083: Stereo Amp-In
  Control: name="Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals: [0x03 0x03]
  Pincap 0x00001727: IN Detect Trigger ImpSense
    Vref caps: HIZ 50 GRD 80
  Pin Default 0xc3a1502e: [Both] Mic at Ext Left
    Conn = 1/8, Color = Red
    DefAssociation = 0x2, Sequence = 0xe
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=00, enabled=0
Node 0x09 [Pin Complex] wcaps 0x400187: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals: [0x00 0x00]
  Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
  Amp-Out vals: [0xbf 0xbf]
  Pincap 0x00001737: IN OUT Detect Trigger ImpSense
    Vref caps: HIZ 50 GRD 80
  Pin Default 0x418130f0: [N/A] Line In at Ext Rear
    Conn = 1/8, Color = Blue
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x20: IN VREF_HIZ
  Unsolicited: tag=00, enabled=0
  Connection: 2
     0x03* 0x0e
Node 0x0a [Pin Complex] wcaps 0x400301: Stereo Digital
  Pincap 0x00000010: OUT
  Pin Default 0x014411f0: [Jack] SPDIF Out at Ext Rear
    Conn = RCA, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Connection: 1
     0x02
Node 0x0b [Audio Selector] wcaps 0x300101: Stereo
  Connection: 6
     0x03 0x0c 0x09 0x0e* 0x05 0x18
Node 0x0c [Audio Mixer] wcaps 0x200101: Stereo
  Connection: 2
     0x1e 0x1f
Node 0x0d [Audio Selector] wcaps 0x30010c: Mono Amp-Out
  Control: name="Beep Playback Volume", index=0, device=0
    ControlAmp: chs=1, dir=Out, idx=0, ofs=0
  Control: name="Beep Playback Switch", index=0, device=0
    ControlAmp: chs=1, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x0f, nsteps=0x0f, stepsize=0x0b, mute=1
  Amp-Out vals: [0x80]
  Connection: 2
     0x10* 0x16
Node 0x0e [Audio Mixer] wcaps 0x200101: Stereo
  Connection: 8
     0x0d 0x11 0x12 0x13 0x1a 0x1b 0x1c 0x1d
Node 0x0f [Audio Mixer] wcaps 0x200100: Mono
  Connection: 1
     0x0b
Node 0x10 [Beep Generator Widget] wcaps 0x700000: Mono
Node 0x11 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Control: name="PCM Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="PCM Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x1f 0x1f]
  Connection: 1
     0x03
Node 0x12 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Control: name="Mic Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Mic Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x9f 0x9f]
  Connection: 1
     0x08
Node 0x13 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Connection: 1
     0x09
Node 0x14 [Power Widget] wcaps 0x500500: Mono
  Power states: D0 D3
  Power: setting=D0, actual=D0
  Connection: 13
     0x0d 0x0e 0x0f 0x10 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1a 0x1d
Node 0x15 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Control: name="Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Capture Source", index=0, device=0
  Amp-Out caps: ofs=0x00, nsteps=0x0f, stepsize=0x05, mute=1
  Amp-Out vals: [0x0c 0x0c]
  Connection: 8
     0x0c* 0x09 0x0e 0x0f 0x19 0x05 0x18 0x17
Node 0x16 [Pin Complex] wcaps 0x400000: Mono
  Pincap 0x00000020: IN
  Pin Default 0x59f311f0: [N/A] Other at Int ATAPI
    Conn = ATAPI, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x20: IN
Node 0x17 [Pin Complex] wcaps 0x400081: Stereo
  Pincap 0x00000027: IN Detect Trigger ImpSense
  Pin Default 0x599311f0: [N/A] Aux at Int ATAPI
    Conn = ATAPI, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x20: IN
  Unsolicited: tag=00, enabled=0
Node 0x18 [Pin Complex] wcaps 0x400187: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals: [0x00 0x00]
  Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1
  Amp-Out vals: [0xbf 0xbf]
  Pincap 0x00001737: IN OUT Detect Trigger ImpSense
    Vref caps: HIZ 50 GRD 80
  Pin Default 0x41a190f0: [N/A] Mic at Ext Rear
    Conn = 1/8, Color = Pink
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=00, enabled=0
  Connection: 2
     0x03* 0x0e
Node 0x19 [Pin Complex] wcaps 0x400001: Stereo
  Pincap 0x00000020: IN
  Pin Default 0x9933e120: [Fixed] CD at Int ATAPI
    Conn = ATAPI, Color = White
    DefAssociation = 0x2, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x20: IN
Node 0x1a [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Connection: 1
     0x05
Node 0x1b [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Connection: 1
     0x17
Node 0x1c [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Connection: 1
     0x18
Node 0x1d [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Control: name="CD Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="CD Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x1f 0x1f]
  Connection: 1
     0x19
Node 0x1e [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Connection: 1
     0x08
Node 0x1f [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x80 0x80]
  Connection: 1
     0x18
--endcollapse--

!!ALSA Device nodes
!!-----------------

crw-rw---T 1 root audio 116, 7 Oct 20 19:56 /dev/snd/controlC0
crw-rw---T 1 root audio 116, 2 Oct 20 19:56 /dev/snd/controlC29
crw-rw---T 1 root audio 116, 6 Oct 20 19:56 /dev/snd/hwC0D0
crw-rw---T 1 root audio 116, 5 Oct 20 19:57 /dev/snd/pcmC0D0c
crw-rw---T 1 root audio 116, 4 Oct 20 19:58 /dev/snd/pcmC0D0p
crw-rw---T 1 root audio 116, 3 Oct 20 19:57 /dev/snd/pcmC0D1p
crw-rw---T 1 root audio 116, 1 Oct 20 19:56 /dev/snd/seq
crw-rw---T 1 root audio 116, 33 Oct 20 19:56 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 80 Oct 20 19:56 .
drwxr-xr-x 3 root root 220 Oct 20 19:56 ..
lrwxrwxrwx 1 root root 12 Oct 20 19:56 pci-0000:00:1b.0 -> ../controlC0
lrwxrwxrwx 1 root root 13 Oct 20 19:56 platform-thinkpad_acpi -> ../controlC29

!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card 0 [Intel]

Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 47'
  Mixer name : 'Analog Devices AD1981'
  Components : 'HDA:11d41981,17aa2025,00100200'
  Controls : 20
  Simple ctrls : 11
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 63
  Mono:
  Front Left: Playback 63 [100%] [3.00dB] [on]
  Front Right: Playback 63 [100%] [3.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch cswitch cswitch-joined cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Mono
  Limits: Playback 0 - 31
  Mono: Capture [off]
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch cswitch cswitch-joined cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Mono
  Limits: Playback 0 - 31
  Mono: Capture [on]
  Front Left: Playback 31 [100%] [12.00dB] [off]
  Front Right: Playback 31 [100%] [12.00dB] [off]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 Playback Source',0
  Capabilities: enum
  Items: 'PCM' 'ADC'
  Item0: 'PCM'
Simple mixer control 'Beep',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 15
  Mono: Playback 0 [0%] [-45.00dB] [off]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 12 [80%] [18.00dB] [on]
  Front Right: Capture 12 [80%] [18.00dB] [on]
Simple mixer control 'Mix',0
  Capabilities: cswitch cswitch-joined cswitch-exclusive penum
  Capture exclusive group: 0
  Capture channels: Mono
  Mono: Capture [off]

!!-------Mixer controls for card 29 [ThinkPadEC]

Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 79HT50WW-1.07'
  Mixer name : 'ThinkPad EC 79HT50WW-1.07'
  Components : ''
  Controls : 2
  Simple ctrls : 1
Simple mixer control 'Console',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 14
  Mono: Playback 8 [57%] [off]

!!Alsactl output
!!--------------

--startcollapse--
state.Intel {
 control.1 {
  iface MIXER
  name 'Master Playback Volume'
  value.0 63
  value.1 63
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 63'
   dbmin -9150
   dbmax 300
   dbvalue.0 300
   dbvalue.1 300
  }
 }
 control.2 {
  iface MIXER
  name 'Master Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.3 {
  iface MIXER
  name 'PCM Playback Volume'
  value.0 31
  value.1 31
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 31'
   dbmin -3450
   dbmax 1200
   dbvalue.0 1200
   dbvalue.1 1200
  }
 }
 control.4 {
  iface MIXER
  name 'PCM Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.5 {
  iface MIXER
  name 'Mic Playback Volume'
  value.0 31
  value.1 31
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 31'
   dbmin -3450
   dbmax 1200
   dbvalue.0 1200
   dbvalue.1 1200
  }
 }
 control.6 {
  iface MIXER
  name 'Mic Playback Switch'
  value.0 false
  value.1 false
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.7 {
  iface MIXER
  name 'CD Playback Volume'
  value.0 31
  value.1 31
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 31'
   dbmin -3450
   dbmax 1200
   dbvalue.0 1200
   dbvalue.1 1200
  }
 }
 control.8 {
  iface MIXER
  name 'CD Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.9 {
  iface MIXER
  name 'Mic Boost Volume'
  value.0 3
  value.1 3
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 3'
   dbmin 0
   dbmax 3000
   dbvalue.0 3000
   dbvalue.1 3000
  }
 }
 control.10 {
  iface MIXER
  name 'Capture Volume'
  value.0 12
  value.1 12
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 15'
   dbmin 0
   dbmax 2250
   dbvalue.0 1800
   dbvalue.1 1800
  }
 }
 control.11 {
  iface MIXER
  name 'Capture Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.12 {
  iface MIXER
  name 'Capture Source'
  value Mic
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 Mic
   item.1 Mix
   item.2 CD
  }
 }
 control.13 {
  iface MIXER
  name 'IEC958 Playback Source'
  value PCM
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 PCM
   item.1 ADC
  }
 }
 control.14 {
  iface MIXER
  name 'IEC958 Playback Con Mask'
  value '0fff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access read
   type IEC958
   count 1
  }
 }
 control.15 {
  iface MIXER
  name 'IEC958 Playback Pro Mask'
  value '0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access read
   type IEC958
   count 1
  }
 }
 control.16 {
  iface MIXER
  name 'IEC958 Playback Default'
  value '0400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access 'read write'
   type IEC958
   count 1
  }
 }
 control.17 {
  iface MIXER
  name 'IEC958 Playback Switch'
  value false
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.18 {
  iface MIXER
  name 'IEC958 Default PCM Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.19 {
  iface MIXER
  name 'Beep Playback Volume'
  value 0
  comment {
   access 'read write'
   type INTEGER
   count 1
   range '0 - 15'
   dbmin -4500
   dbmax 0
   dbvalue.0 -4500
  }
 }
 control.20 {
  iface MIXER
  name 'Beep Playback Switch'
  value false
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
}
state.ThinkPadEC {
 control.1 {
  iface MIXER
  name 'Console Playback Volume'
  value 8
  comment {
   access read
   type INTEGER
   count 1
   range '0 - 14'
  }
 }
 control.2 {
  iface MIXER
  name 'Console Playback Switch'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
}
--endcollapse--

!!All Loaded Modules
!!------------------

Module
bnep
rfcomm
bluetooth
parport_pc
ppdev
dm_crypt
binfmt_misc
snd_hda_codec_analog
pcmcia
rndis_wlan
rndis_host
snd_hda_intel
cdc_ether
yenta_socket
joydev
usbnet
snd_hda_codec
thinkpad_acpi
snd_seq_midi
pcmcia_rsrc
arc4
snd_rawmidi
pcmcia_core
snd_hwdep
snd_seq_midi_event
psmouse
iwl3945
iwl_legacy
snd_seq
snd_pcm
serio_raw
snd_seq_device
snd_timer
snd_page_alloc
mac80211
nsc_ircc
cfg80211
snd
irda
tpm_tis
crc_ccitt
soundcore
mac_hid
nvram
lp
parport
usbhid
hid
i915
drm_kms_helper
drm
e1000e
i2c_algo_bit
video

!!Sysfs Files
!!-----------

/sys/class/sound/hwC0D0/init_pin_configs:
0x05 0xc3014110
0x06 0x422140f0
0x07 0x591311f0
0x08 0xc3a1502e
0x09 0x418130f0
0x0a 0x014411f0
0x16 0x59f311f0
0x17 0x599311f0
0x18 0x41a190f0
0x19 0x9933e120

/sys/class/sound/hwC0D0/driver_pin_configs:

/sys/class/sound/hwC0D0/user_pin_configs:

/sys/class/sound/hwC0D0/init_verbs:

!!ALSA/HDA dmesg
!!--------------

[ 16.482735] usbcore: registered new interface driver cdc_ether
[ 16.510331] snd_hda_intel 0000:00:1b.0: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 16.510346] hda_intel: probe_mask set to 0x1 for device 17aa:2010
[ 16.510440] snd_hda_intel 0000:00:1b.0: irq 47 for MSI/MSI-X
[ 16.510494] snd_hda_intel 0000:00:1b.0: setting latency timer to 64
[ 16.520890] yenta_cardbus 0000:15:00.0: ISA IRQ mask 0x0cf0, PCI irq 16

Try:

echo "options snd-hda-intel model=thinkpad" | sudo tee -a /etc/modprobe.d/alsa-base.conf > /dev/null

reboot to test

Source:
http://crunchbanglinux.org/forums/topic/16240/solvedsound-stopped-working/

> When the capture is turned off, ------- is shown

Yep that is the problem with mix. As mentioned I didn't find an option in help to turn it on. Unmuting or turning volumne up don't work for mix. The rest of the options are full volume and unmuted.
Is there one in alsamixer or has to be enabled elsewhere?

> echo "options snd-hda-intel model=thinkpad" | sudo tee -a /etc/modprobe.d/alsa-base.conf > /dev/null

Darn, no effect.

I found after last package update sound was restored.