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[Bug 1451080] [NEW] [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Joseph Chereshnovsky <joseph.chereshnovsky@xxxxxxxxx>
Date: Sat, 02 May 2015 19:52:57 -0000
Reply-to: Bug 1451080 <1451080@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

No output devices recognized in pulseaudio after updates installation.

More details:


$ lsb_release -d
Description:	Ubuntu 15.04

$ uname -a
Linux cgn 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

$ udevd --version
219

$ lspci -nn|egrep 'ultimedia|udio|sound|AC97|ac97|EMU'
00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 09)
00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)


$ cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7d1c000 irq 48
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7d18000 irq 46

$ cat /proc/asound/pcm
00-03: HDMI 0 : HDMI 0 : playback 1
00-07: HDMI 1 : HDMI 1 : playback 1
01-00: CX20751/2 Analog : CX20751/2 Analog : playback 1 : capture 1


$ cat /proc/asound/car*/co* | grep Codec
Codec: Intel Haswell HDMI
Codec: Conexant CX20751/2


$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

$ arecord -l
List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0


$ aplay -L
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
hdmi:CARD=HDMI,DEV=0
HDA Intel HDMI, HDMI 0
HDMI Audio Output
hdmi:CARD=HDMI,DEV=1
HDA Intel HDMI, HDMI 1
HDMI Audio Output
dmix:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct sample mixing device
dmix:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct sample mixing device
dsnoop:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct sample snooping device
dsnoop:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct sample snooping device
hw:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct hardware device without any conversions
hw:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct hardware device without any conversions
plughw:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Hardware device with all software conversions
plughw:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Hardware device with all software conversions
sysdefault:CARD=PCH
HDA Intel PCH, CX20751/2 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, CX20751/2 Analog
Hardware device with all software conversions


$ udevadm info -qall -p /sys/class/sound/card0
P: /devices/pci0000:00/0000:00:03.0/sound/card0
E: DEVPATH=/devices/pci0000:00/0000:00:03.0/sound/card0
E: ID_BUS=pci
E: ID_FOR_SEAT=sound-pci-0000_00_03_0
E: ID_MODEL_FROM_DATABASE=Haswell-ULT HD Audio Controller
E: ID_MODEL_ID=0x0a0c
E: ID_PATH=pci-0000:00:03.0
E: ID_PATH_TAG=pci-0000_00_03_0
E: ID_PCI_CLASS_FROM_DATABASE=Multimedia controller
E: ID_PCI_SUBCLASS_FROM_DATABASE=Audio device
E: ID_VENDOR_FROM_DATABASE=Intel Corporation
E: ID_VENDOR_ID=0x8086
E: SOUND_FORM_FACTOR=internal
E: SOUND_INITIALIZED=1
E: SUBSYSTEM=sound
E: SYSTEMD_WANTS=sound.target
E: TAGS=:seat:systemd:
E: USEC_INITIALIZED=96013

$ udevadm info -qall -p /sys/class/sound/card1
P: /devices/pci0000:00/0000:00:1b.0/sound/card1
E: DEVPATH=/devices/pci0000:00/0000:00:1b.0/sound/card1
E: ID_BUS=pci
E: ID_FOR_SEAT=sound-pci-0000_00_1b_0
E: ID_MODEL_FROM_DATABASE=8 Series HD Audio Controller
E: ID_MODEL_ID=0x9c20
E: ID_PATH=pci-0000:00:1b.0
E: ID_PATH_TAG=pci-0000_00_1b_0
E: ID_PCI_CLASS_FROM_DATABASE=Multimedia controller
E: ID_PCI_SUBCLASS_FROM_DATABASE=Audio device
E: ID_VENDOR_FROM_DATABASE=Intel Corporation
E: ID_VENDOR_ID=0x8086
E: SOUND_FORM_FACTOR=internal
E: SOUND_INITIALIZED=1
E: SUBSYSTEM=sound
E: SYSTEMD_WANTS=sound.target
E: TAGS=:seat:systemd:
E: USEC_INITIALIZED=84536


$ dmesg | grep -i hda 
[ 2.381414] sound hdaudioC1D0: CX20751/2: BIOS auto-probing.
[ 2.381715] sound hdaudioC1D0: autoconfig: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
[ 2.381718] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 2.381720] sound hdaudioC1D0: hp_outs=1 (0x16/0x0/0x0/0x0/0x0)
[ 2.381722] sound hdaudioC1D0: mono: mono_out=0x0
[ 2.381724] sound hdaudioC1D0: inputs:
[ 2.381726] sound hdaudioC1D0: Internal Mic=0x1a
[ 2.381728] sound hdaudioC1D0: Mic=0x19
[ 2.382326] sound hdaudioC1D0: Enable sync_write for stable communication
[ 2.384765] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input12
[ 2.384830] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input13
[ 2.566072] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input18
[ 2.566151] input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input19


$ pacmd list-cards
1 card(s) available.
index: 0
name: 
driver: 
owner module: 6
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel HDMI"
alsa.long_card_name = "HDA Intel HDMI at 0xf7d1c000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:03.0"
sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "0a0c"
device.product.name = "Haswell-ULT HD Audio Controller"
device.form_factor = "internal"
device.string = "0"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: unknown)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: unknown)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: unknown)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5200, available: unknown)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 100, available: unknown)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 100, available: unknown)
off: Off (priority 0, available: unknown)
active profile: 
sinks:
alsa_output.pci-0000_00_03.0.hdmi-stereo/#0: Built-in Audio Digital Stereo (HDMI)
sources:
alsa_output.pci-0000_00_03.0.hdmi-stereo.monitor/#0: Monitor of Built-in Audio Digital Stereo (HDMI)
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"


$ pacmd list-sinks
1 sink(s) available.
* index: 0
name: 
driver: 
flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE 
priority: 9950
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 371.52 ms
card: 0 
module: 6
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "HDMI 1"
alsa.id = "HDMI 1"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "7"
alsa.card = "0"
alsa.card_name = "HDA Intel HDMI"
alsa.long_card_name = "HDA Intel HDMI at 0xf7d1c000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:03.0"
sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "0a0c"
device.product.name = "Haswell-ULT HD Audio Controller"
device.form_factor = "internal"
device.string = "hdmi:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "hdmi-stereo"
device.profile.description = "Digital Stereo (HDMI)"
device.description = "Built-in Audio Digital Stereo (HDMI)"
alsa.mixer_name = "Intel Haswell HDMI"
alsa.components = "HDA:80862807,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
active port: 


$ speaker-test -c 2 -D default -t wav
speaker-test 1.0.28
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 96 to 1048576
Period size range from 32 to 349526
Using max buffer size 1048576
Periods = 4
was set period_size = 262144
was set buffer_size = 1048576
0 - Front Left
1 - Front Right
^C
[ no sound ]


$ sudo aplay -Ddefault -c 2 /usr/share/sounds/alsa/Front_Center.wav
[ no sound ]

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: pulseaudio 1:6.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  jchereshnovsky   8474 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat May  2 22:49:23 2015
InstallationDate: Installed on 2014-12-12 (140 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: pulseaudio
Symptom: audio
Symptom_Card: HDA-Intel - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Title: [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
UpgradeStatus: Upgraded to vivid on 2015-04-25 (7 days ago)
dmi.bios.date: 06/23/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX31LAA.211
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX31LAA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31LAA.211:bd06/23/2014:svnASUSTeKCOMPUTERINC.:pnUX31LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX31LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX31LAA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: pulseaudio (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug vivid

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1451080

Title:
  [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to
  detect card

Status in pulseaudio package in Ubuntu:
  New

Bug description:
  No output devices recognized in pulseaudio after updates installation.

  More details:

  
  $ lsb_release -d
  Description:	Ubuntu 15.04

  $ uname -a
  Linux cgn 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  $ udevd --version
  219

  $ lspci -nn|egrep 'ultimedia|udio|sound|AC97|ac97|EMU'
  00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 09)
  00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)


  $ cat /proc/asound/cards
  0 [HDMI ]: HDA-Intel - HDA Intel HDMI
  HDA Intel HDMI at 0xf7d1c000 irq 48
  1 [PCH ]: HDA-Intel - HDA Intel PCH
  HDA Intel PCH at 0xf7d18000 irq 46

  $ cat /proc/asound/pcm
  00-03: HDMI 0 : HDMI 0 : playback 1
  00-07: HDMI 1 : HDMI 1 : playback 1
  01-00: CX20751/2 Analog : CX20751/2 Analog : playback 1 : capture 1

  
  $ cat /proc/asound/car*/co* | grep Codec
  Codec: Intel Haswell HDMI
  Codec: Conexant CX20751/2

  
  $ aplay -l
  **** List of PLAYBACK Hardware Devices ****
  card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
  card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
  card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

  $ arecord -l
  List of CAPTURE Hardware Devices ****
  card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

  
  $ aplay -L
  default
  Playback/recording through the PulseAudio sound server
  null
  Discard all samples (playback) or generate zero samples (capture)
  pulse
  PulseAudio Sound Server
  hdmi:CARD=HDMI,DEV=0
  HDA Intel HDMI, HDMI 0
  HDMI Audio Output
  hdmi:CARD=HDMI,DEV=1
  HDA Intel HDMI, HDMI 1
  HDMI Audio Output
  dmix:CARD=HDMI,DEV=3
  HDA Intel HDMI, HDMI 0
  Direct sample mixing device
  dmix:CARD=HDMI,DEV=7
  HDA Intel HDMI, HDMI 1
  Direct sample mixing device
  dsnoop:CARD=HDMI,DEV=3
  HDA Intel HDMI, HDMI 0
  Direct sample snooping device
  dsnoop:CARD=HDMI,DEV=7
  HDA Intel HDMI, HDMI 1
  Direct sample snooping device
  hw:CARD=HDMI,DEV=3
  HDA Intel HDMI, HDMI 0
  Direct hardware device without any conversions
  hw:CARD=HDMI,DEV=7
  HDA Intel HDMI, HDMI 1
  Direct hardware device without any conversions
  plughw:CARD=HDMI,DEV=3
  HDA Intel HDMI, HDMI 0
  Hardware device with all software conversions
  plughw:CARD=HDMI,DEV=7
  HDA Intel HDMI, HDMI 1
  Hardware device with all software conversions
  sysdefault:CARD=PCH
  HDA Intel PCH, CX20751/2 Analog
  Default Audio Device
  front:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  Front speakers
  surround21:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  2.1 Surround output to Front and Subwoofer speakers
  surround40:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  4.0 Surround output to Front and Rear speakers
  surround41:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  4.1 Surround output to Front, Rear and Subwoofer speakers
  surround50:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  5.0 Surround output to Front, Center and Rear speakers
  surround51:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  5.1 Surround output to Front, Center, Rear and Subwoofer speakers
  surround71:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
  dmix:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  Direct sample mixing device
  dsnoop:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  Direct sample snooping device
  hw:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  Direct hardware device without any conversions
  plughw:CARD=PCH,DEV=0
  HDA Intel PCH, CX20751/2 Analog
  Hardware device with all software conversions


  $ udevadm info -qall -p /sys/class/sound/card0
  P: /devices/pci0000:00/0000:00:03.0/sound/card0
  E: DEVPATH=/devices/pci0000:00/0000:00:03.0/sound/card0
  E: ID_BUS=pci
  E: ID_FOR_SEAT=sound-pci-0000_00_03_0
  E: ID_MODEL_FROM_DATABASE=Haswell-ULT HD Audio Controller
  E: ID_MODEL_ID=0x0a0c
  E: ID_PATH=pci-0000:00:03.0
  E: ID_PATH_TAG=pci-0000_00_03_0
  E: ID_PCI_CLASS_FROM_DATABASE=Multimedia controller
  E: ID_PCI_SUBCLASS_FROM_DATABASE=Audio device
  E: ID_VENDOR_FROM_DATABASE=Intel Corporation
  E: ID_VENDOR_ID=0x8086
  E: SOUND_FORM_FACTOR=internal
  E: SOUND_INITIALIZED=1
  E: SUBSYSTEM=sound
  E: SYSTEMD_WANTS=sound.target
  E: TAGS=:seat:systemd:
  E: USEC_INITIALIZED=96013

  $ udevadm info -qall -p /sys/class/sound/card1
  P: /devices/pci0000:00/0000:00:1b.0/sound/card1
  E: DEVPATH=/devices/pci0000:00/0000:00:1b.0/sound/card1
  E: ID_BUS=pci
  E: ID_FOR_SEAT=sound-pci-0000_00_1b_0
  E: ID_MODEL_FROM_DATABASE=8 Series HD Audio Controller
  E: ID_MODEL_ID=0x9c20
  E: ID_PATH=pci-0000:00:1b.0
  E: ID_PATH_TAG=pci-0000_00_1b_0
  E: ID_PCI_CLASS_FROM_DATABASE=Multimedia controller
  E: ID_PCI_SUBCLASS_FROM_DATABASE=Audio device
  E: ID_VENDOR_FROM_DATABASE=Intel Corporation
  E: ID_VENDOR_ID=0x8086
  E: SOUND_FORM_FACTOR=internal
  E: SOUND_INITIALIZED=1
  E: SUBSYSTEM=sound
  E: SYSTEMD_WANTS=sound.target
  E: TAGS=:seat:systemd:
  E: USEC_INITIALIZED=84536


  $ dmesg | grep -i hda 
  [ 2.381414] sound hdaudioC1D0: CX20751/2: BIOS auto-probing.
  [ 2.381715] sound hdaudioC1D0: autoconfig: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
  [ 2.381718] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
  [ 2.381720] sound hdaudioC1D0: hp_outs=1 (0x16/0x0/0x0/0x0/0x0)
  [ 2.381722] sound hdaudioC1D0: mono: mono_out=0x0
  [ 2.381724] sound hdaudioC1D0: inputs:
  [ 2.381726] sound hdaudioC1D0: Internal Mic=0x1a
  [ 2.381728] sound hdaudioC1D0: Mic=0x19
  [ 2.382326] sound hdaudioC1D0: Enable sync_write for stable communication
  [ 2.384765] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input12
  [ 2.384830] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input13
  [ 2.566072] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input18
  [ 2.566151] input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input19


  
  $ pacmd list-cards
  1 card(s) available.
  index: 0
  name: 
  driver: 
  owner module: 6
  properties:
  alsa.card = "0"
  alsa.card_name = "HDA Intel HDMI"
  alsa.long_card_name = "HDA Intel HDMI at 0xf7d1c000 irq 48"
  alsa.driver_name = "snd_hda_intel"
  device.bus_path = "pci-0000:00:03.0"
  sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
  device.bus = "pci"
  device.vendor.id = "8086"
  device.vendor.name = "Intel Corporation"
  device.product.id = "0a0c"
  device.product.name = "Haswell-ULT HD Audio Controller"
  device.form_factor = "internal"
  device.string = "0"
  device.description = "Built-in Audio"
  module-udev-detect.discovered = "1"
  device.icon_name = "audio-card-pci"
  profiles:
  output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: unknown)
  output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: unknown)
  output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: unknown)
  output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5200, available: unknown)
  output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 100, available: unknown)
  output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 100, available: unknown)
  off: Off (priority 0, available: unknown)
  active profile: 
  sinks:
  alsa_output.pci-0000_00_03.0.hdmi-stereo/#0: Built-in Audio Digital Stereo (HDMI)
  sources:
  alsa_output.pci-0000_00_03.0.hdmi-stereo.monitor/#0: Monitor of Built-in Audio Digital Stereo (HDMI)
  ports:
  hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
  properties:
  device.icon_name = "video-display"
  hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
  properties:
  device.icon_name = "video-display"


  
  $ pacmd list-sinks
  1 sink(s) available.
  * index: 0
  name: 
  driver: 
  flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
  state: SUSPENDED
  suspend cause: IDLE 
  priority: 9950
  volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
  balance 0.00
  base volume: 65536 / 100% / 0.00 dB
  volume steps: 65537
  muted: no
  current latency: 0.00 ms
  max request: 0 KiB
  max rewind: 0 KiB
  monitor source: 0
  sample spec: s16le 2ch 44100Hz
  channel map: front-left,front-right
  Stereo
  used by: 0
  linked by: 0
  configured latency: 0.00 ms; range is 0.50 .. 371.52 ms
  card: 0 
  module: 6
  properties:
  alsa.resolution_bits = "16"
  device.api = "alsa"
  device.class = "sound"
  alsa.class = "generic"
  alsa.subclass = "generic-mix"
  alsa.name = "HDMI 1"
  alsa.id = "HDMI 1"
  alsa.subdevice = "0"
  alsa.subdevice_name = "subdevice #0"
  alsa.device = "7"
  alsa.card = "0"
  alsa.card_name = "HDA Intel HDMI"
  alsa.long_card_name = "HDA Intel HDMI at 0xf7d1c000 irq 48"
  alsa.driver_name = "snd_hda_intel"
  device.bus_path = "pci-0000:00:03.0"
  sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
  device.bus = "pci"
  device.vendor.id = "8086"
  device.vendor.name = "Intel Corporation"
  device.product.id = "0a0c"
  device.product.name = "Haswell-ULT HD Audio Controller"
  device.form_factor = "internal"
  device.string = "hdmi:0"
  device.buffering.buffer_size = "65536"
  device.buffering.fragment_size = "32768"
  device.access_mode = "mmap+timer"
  device.profile.name = "hdmi-stereo"
  device.profile.description = "Digital Stereo (HDMI)"
  device.description = "Built-in Audio Digital Stereo (HDMI)"
  alsa.mixer_name = "Intel Haswell HDMI"
  alsa.components = "HDA:80862807,80860101,00100000"
  module-udev-detect.discovered = "1"
  device.icon_name = "audio-card-pci"
  ports:
  hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
  properties:
  device.icon_name = "video-display"
  active port: 


  $ speaker-test -c 2 -D default -t wav
  speaker-test 1.0.28
  Playback device is default
  Stream parameters are 48000Hz, S16_LE, 2 channels
  WAV file(s)
  Rate set to 48000Hz (requested 48000Hz)
  Buffer size range from 96 to 1048576
  Period size range from 32 to 349526
  Using max buffer size 1048576
  Periods = 4
  was set period_size = 262144
  was set buffer_size = 1048576
  0 - Front Left
  1 - Front Right
  ^C
  [ no sound ]

  
  $ sudo aplay -Ddefault -c 2 /usr/share/sounds/alsa/Front_Center.wav
  [ no sound ]

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: pulseaudio 1:6.0-0ubuntu6
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jchereshnovsky   8474 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat May  2 22:49:23 2015
  InstallationDate: Installed on 2014-12-12 (140 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: pulseaudio
  Symptom: audio
  Symptom_Card: HDA-Intel - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Title: [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
  UpgradeStatus: Upgraded to vivid on 2015-04-25 (7 days ago)
  dmi.bios.date: 06/23/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX31LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX31LAA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31LAA.211:bd06/23/2014:svnASUSTeKCOMPUTERINC.:pnUX31LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX31LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX31LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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Follow ups

[Bug 1451080] Re: [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
From: Raymond, 2015-05-04
[Bug 1451080] Re: [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
From: Joseph Chereshnovsky, 2015-05-02
[Bug 1451080] [NEW] [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
From: Joseph Chereshnovsky, 2015-05-02
References

[Bug 1451080] [NEW] [UX31LAA, Conexant CX20751/2, Speaker, Internal] Pulseaudio fails to detect card
From: Joseph Chereshnovsky, 2015-05-02