[solved] Pulseaudio doesn't detect sound card after system update

Before a recent system update I had pulseaudio working flawlessly, but after doing a recent system update with pacman -Syu,
pulseaudio no longer sees my sound card and only displays the Dummy audio device.  Among the packages updated that I can
remember off the top of my head are the Linux keneral, udev, kmod, instead of trying to roll back my system I figured I would try
to fix the issue.  The only thing suggested in the Pulseaudio wiki is that a asound.conf directory is overriding the /etc/asound.conf
file which is not the case on my system.
Looking at the output from lsmod I can see where the kernel modules for the sound card is getting loaded
snd_hda_intel 23375 0
snd_hda_codec 89160 3 snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi
snd_hwdep 6389 1 snd_hda_codec
snd_pcm 74780 3 snd_hda_codec,snd_hda_intel,snd_hda_codec_hdmi
snd_page_alloc 7153 2 snd_pcm,snd_hda_intel
snd_timer 19544 1 snd_pcm
and looking at the output from the ps command I can see that pulseaudio is getting started
1190 ? S<l 0:00 /usr/bin/pulseaudio --start
1195 ? S 0:00 \_ /usr/lib/pulse/gconf-helper
but pacmd list still reports this
0 card(s) available.
0 sink input(s) available.
0 source outputs(s) available.
0 cache entrie(s) available.
Here is the output of pacmd dump if it helps
### Configuration dump generated at Thu Feb 16 08:45:56 2012
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore
load-module module-augment-properties
load-module module-udev-detect tsched=0
load-module module-jackdbus-detect
load-module module-bluetooth-discover
load-module module-esound-protocol-unix
load-module module-native-protocol-unix
load-module module-gconf
load-module module-default-device-restore
load-module module-rescue-streams
load-module module-null-sink sink_name=auto_null sink_properties='device.description="Dummy Output"'
load-module module-always-sink
load-module module-intended-roles
load-module module-suspend-on-idle
load-module module-console-kit
load-module module-position-event-sounds
load-module module-cork-music-on-phone
load-module module-filter-heuristics
load-module module-filter-apply
load-module module-dbus-protocol
load-module module-x11-publish display=:0.0
load-module module-cli-protocol-unix
set-sink-volume auto_null 0x10000
set-sink-mute auto_null no
suspend-sink auto_null yes
set-source-volume auto_null.monitor 0x10000
set-source-mute auto_null.monitor no
suspend-source auto_null.monitor yes
set-default-sink auto_null
set-default-source auto_null.monitor
### EOF
EDIT: I should also add that fuser -v /dev/snd/* returns nothing and fuser -v /dev/dsp returns "Specified filename /dev/dsp does not exist".
Last edited by vendion (2012-03-02 23:26:28)

Digging into this further aplay -L gives different output based off of whether or not I ran is as my normal user or with sudo/as root.
As a user (which is how pulseaudio is also being ran):
> aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)
as root it does see both my sound cards when I run it with sudo or as root:
> sudo aplay -L
Password:
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=SB
HDA ATI SB, ALC887-VD Analog
Default Audio Device
front:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
Front speakers
surround40:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=SB,DEV=0
HDA ATI SB, ALC887-VD Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=HDMI,DEV=0
HDA ATI HDMI, HDMI 0
HDMI Audio Output
This behavior is confusing to me, and if someone knows what is going on and how to fix it I really want to get sound with pulseaudio working and have sound again.

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      Subdevice #7: subdevice #7
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      Subdevice #0: subdevice #0
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    Last edited by martincho (2010-12-22 05:22:55)

    Hi
    Now it's solved following this link: https://wiki.archlinux.org/index.php/ALSA
    There found section: Set the default sound card
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    MODULES=(!snd-via82xx)
    Tks

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    I have worked on dc7600's dc7700's and the newer Elite 8xxx models, which all have the Realtek HD audio chip.
    Never had a problem getting the sound to work right from the upgrade.
    The HD audio is the driver that Windows installs natively.
    The Realtek HD audio driver is from Realtek.

  • Pulse Audio no longer detecting sound card; ALSA still detects

    After a recent update, pulseaudio has stopped detecting my sound card. ALSA still detects my soundcard, and I was able to find the following in the verbose output of starting pulseaudio.
    D: [pulseaudio] reserve-wrap.c: Successfully acquired reservation lock on device 'Audio0'
    I: [pulseaudio] (alsa-lib)utils.c: could not open configuration file /usr/share/alsa/ucm/HDA Intel/HDA Intel.conf
    I: [pulseaudio] (alsa-lib)parser.c: error: could not parse configuration for card HDA Intel
    I: [pulseaudio] (alsa-lib)main.c: error: failed to import HDA Intel use case configuration -2
    I: [pulseaudio] alsa-ucm.c: UCM not available for card HDA Intel
    When I check out the ALSA directory mentioned, it turns out to indeed be the case that the entire ucm directory does not exist
    [root@ArchSpiron james-arch]# ls -lah /usr/share/alsa/
    total 52K
    drwxr-xr-x 2 root 4.0K Apr 14 14:56 pcm
    drwxr-xr-x 7 root 4.0K Apr 14 14:56 .
    -rw-r--r-- 1 root 9.0K Apr 14 14:12 alsa.conf
    drwxr-xr-x 2 root 4.0K Apr 14 14:12 alsa.conf.d
    drwxr-xr-x 208 root 4.0K Apr 13 15:37 ..
    drwxr-xr-x 2 root 4.0K Apr 11 07:20 init
    drwxr-xr-x 2 root 4.0K Apr 11 07:20 speaker-test
    drwxr-xr-x 3 root 4.0K Jan 23 21:21 cards
    -rw-r--r-- 1 root 523 Dec 29 21:33 bluetooth.conf
    -rw-r--r-- 1 root 155 Dec 18 22:34 smixer.conf
    -rw-r--r-- 1 root 3.2K Dec 18 22:34 sndo-mixer.alisp
    Instead the configuration file it's looking for exists under the cards/ directory
    [root@ArchSpiron james-arch]# ls -lah /usr/share/alsa/cards/
    total 264K
    drwxr-xr-x 3 root 4.0K Apr 14 14:59 .
    drwxr-xr-x 7 root 4.0K Apr 14 14:56 ..
    -rw-r--r-- 1 root 4.6K Apr 13 16:20 HDA-Intel.conf
    -rw-r--r-- 1 root 1.4K Apr 13 16:20 aliases.conf
    -rw-r--r-- 1 root 7.0K Apr 12 08:10 USB-Audio.conf
    drwxr-xr-x 2 root 4.0K Jan 23 21:21 SI7018
    -rw-r--r-- 1 root 669 Dec 18 22:34 AACI.conf
    -rw-r--r-- 1 root 302 Dec 18 22:34 ATIIXP-MODEM.conf
    -rw-r--r-- 1 root 2.2K Dec 18 22:34 ATIIXP-SPDMA.conf
    -rw-r--r-- 1 root 2.4K Dec 18 22:34 ATIIXP.conf
    -rw-r--r-- 1 root 437 Dec 18 22:34 AU8810.conf
    -rw-r--r-- 1 root 159 Dec 18 22:34 AU8820.conf
    -rw-r--r-- 1 root 520 Dec 18 22:34 AU8830.conf
    -rw-r--r-- 1 root 5.7K Dec 18 22:34 Audigy.conf
    -rw-r--r-- 1 root 7.5K Dec 18 22:34 Audigy2.conf
    -rw-r--r-- 1 root 2.3K Dec 18 22:34 Aureon51.conf
    -rw-r--r-- 1 root 2.5K Dec 18 22:34 Aureon71.conf
    -rw-r--r-- 1 root 3.8K Dec 18 22:34 CA0106.conf
    -rw-r--r-- 1 root 1.8K Dec 18 22:34 CMI8338-SWIEC.conf
    -rw-r--r-- 1 root 1.9K Dec 18 22:34 CMI8338.conf
    -rw-r--r-- 1 root 2.1K Dec 18 22:34 CMI8738-MC6.conf
    -rw-r--r-- 1 root 2.9K Dec 18 22:34 CMI8738-MC8.conf
    -rw-r--r-- 1 root 1.6K Dec 18 22:34 CMI8788.conf
    -rw-r--r-- 1 root 2.9K Dec 18 22:34 CS46xx.conf
    -rw-r--r-- 1 root 5.5K Dec 18 22:34 EMU10K1.conf
    -rw-r--r-- 1 root 2.7K Dec 18 22:34 EMU10K1X.conf
    -rw-r--r-- 1 root 1.4K Dec 18 22:34 ENS1370.conf
    -rw-r--r-- 1 root 1.8K Dec 18 22:34 ENS1371.conf
    -rw-r--r-- 1 root 152 Dec 18 22:34 ES1968.conf
    -rw-r--r-- 1 root 4.3K Dec 18 22:34 Echo_Echo3G.conf
    -rw-r--r-- 1 root 1.2K Dec 18 22:34 FM801.conf
    -rw-r--r-- 1 root 333 Dec 18 22:34 FWSpeakers.conf
    -rw-r--r-- 1 root 672 Dec 18 22:34 FireWave.conf
    -rw-r--r-- 1 root 217 Dec 18 22:34 GUS.conf
    -rw-r--r-- 1 root 2.1K Dec 18 22:34 ICE1712.conf
    -rw-r--r-- 1 root 2.8K Dec 18 22:34 ICE1724.conf
    -rw-r--r-- 1 root 192 Dec 18 22:34 ICH-MODEM.conf
    -rw-r--r-- 1 root 3.0K Dec 18 22:34 ICH.conf
    -rw-r--r-- 1 root 2.8K Dec 18 22:34 ICH4.conf
    -rw-r--r-- 1 root 558 Dec 18 22:34 Maestro3.conf
    -rw-r--r-- 1 root 4.7K Dec 18 22:34 NFORCE.conf
    -rw-r--r-- 1 root 657 Dec 18 22:34 PC-Speaker.conf
    -rw-r--r-- 1 root 486 Dec 18 22:34 PMac.conf
    -rw-r--r-- 1 root 705 Dec 18 22:34 PMacToonie.conf
    -rw-r--r-- 1 root 1.2K Dec 18 22:34 PS3.conf
    -rw-r--r-- 1 root 780 Dec 18 22:34 RME9636.conf
    -rw-r--r-- 1 root 780 Dec 18 22:34 RME9652.conf
    -rw-r--r-- 1 root 1.5K Dec 18 22:34 SB-XFi.conf
    -rw-r--r-- 1 root 2.2K Dec 18 22:34 SI7018.conf
    -rw-r--r-- 1 root 1.7K Dec 18 22:34 TRID4DWAVENX.conf
    -rw-r--r-- 1 root 1.2K Dec 18 22:34 VIA686A.conf
    -rw-r--r-- 1 root 2.7K Dec 18 22:34 VIA8233.conf
    -rw-r--r-- 1 root 2.8K Dec 18 22:34 VIA8233A.conf
    -rw-r--r-- 1 root 2.5K Dec 18 22:34 VIA8237.conf
    -rw-r--r-- 1 root 830 Dec 18 22:34 VX222.conf
    -rw-r--r-- 1 root 839 Dec 18 22:34 VXPocket.conf
    -rw-r--r-- 1 root 1.5K Dec 18 22:34 VXPocket440.conf
    -rw-r--r-- 1 root 1.4K Dec 18 22:34 YMF744.conf
    -rw-r--r-- 1 root 687 Dec 18 22:34 aliases.alisp
    I'm not at all familiar with pulseaudio configuration. Does anyone know of a good way for me to resolve this issue? Have I even identified the correct issue?
    UPDATE:
    I was able to work around my problem for the moment by symlinking the configuration file to the location that pulseaudio was actually looking for it
    # mkdir -p /usr/share/alsa/ucm/HDA\ Intel
    # ln -s /usr/share/alsa/cards/HDA-Intel.conf /usr/share/alsa/ucm/HDA\ Intel/HDA\ Intel.conf
    Although this does get my sound back, it is a hacky work-around and obviously not ideal. Anyone who knows a bit about pulse configuration, I welcome your input here
    Last edited by OakRaider4Life (2013-04-14 22:14:34)

    Thank you so much for posting your solution!
    I was having the same problem. The funny part was it started happening (and not always) after KDE says that the Intel HDA device is "gone" and asking me to remove it from my configuration. Even by saying no it wouldn't work. Killing pulseaudio with
    pulseaudio -k
    would have everything fallback to Alsa but starting pulseaudio again wouldn't work.
    Rebooting right away doesn't take care of the issue either but after a while the problem would go away...
    Any inputs would be appreaciated!

  • Pulseaudio doesn't detect all profiles

    Hello archlinux forum
    I have problems setting up pulseaudio on my new archlinux installation, it fails to detect the full capabilities of my soundcards.
    alsa detects every sound card (there are 3: my audigy sound card, my internal intel hda and my graphics card's hdmi), but pulseaudio only registers the inputs of my audigy and the intel hda, so i have no sound without tinkering
    $ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: Audigy2 [SB Audigy 2 ZS [SB0350]], device 0: emu10k1 [ADC Capture/Standard PCM Playback]
    Subdevices: 32/32
    Subdevice #0: subdevice #0
    Subdevice #1: subdevice #1
    Subdevice #2: subdevice #2
    Subdevice #3: subdevice #3
    Subdevice #4: subdevice #4
    Subdevice #5: subdevice #5
    Subdevice #6: subdevice #6
    Subdevice #7: subdevice #7
    Subdevice #8: subdevice #8
    Subdevice #9: subdevice #9
    Subdevice #10: subdevice #10
    Subdevice #11: subdevice #11
    Subdevice #12: subdevice #12
    Subdevice #13: subdevice #13
    Subdevice #14: subdevice #14
    Subdevice #15: subdevice #15
    Subdevice #16: subdevice #16
    Subdevice #17: subdevice #17
    Subdevice #18: subdevice #18
    Subdevice #19: subdevice #19
    Subdevice #20: subdevice #20
    Subdevice #21: subdevice #21
    Subdevice #22: subdevice #22
    Subdevice #23: subdevice #23
    Subdevice #24: subdevice #24
    Subdevice #25: subdevice #25
    Subdevice #26: subdevice #26
    Subdevice #27: subdevice #27
    Subdevice #28: subdevice #28
    Subdevice #29: subdevice #29
    Subdevice #30: subdevice #30
    Subdevice #31: subdevice #31
    card 0: Audigy2 [SB Audigy 2 ZS [SB0350]], device 2: emu10k1 efx [Multichannel Capture/PT Playback]
    Subdevices: 8/8
    Subdevice #0: subdevice #0
    Subdevice #1: subdevice #1
    Subdevice #2: subdevice #2
    Subdevice #3: subdevice #3
    Subdevice #4: subdevice #4
    Subdevice #5: subdevice #5
    Subdevice #6: subdevice #6
    Subdevice #7: subdevice #7
    card 0: Audigy2 [SB Audigy 2 ZS [SB0350]], device 3: emu10k1 [Multichannel Playback]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 0: Audigy2 [SB Audigy 2 ZS [SB0350]], device 4: p16v [p16v]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 2: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 2: PCH [HDA Intel PCH], device 1: ALC1150 Digital [ALC1150 Digital]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 3: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 3: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 3: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    card 3: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    pacmd list-cards
    3 card(s) available.
    index: 0
    name: <alsa_card.pci-0000_01_00.1>
    driver: <module-alsa-card.c>
    owner module: 6
    properties:
    alsa.card = "3"
    alsa.card_name = "HDA NVidia"
    alsa.long_card_name = "HDA NVidia at 0xf7080000 irq 17"
    alsa.driver_name = "snd_hda_intel"
    device.bus_path = "pci-0000:01:00.1"
    sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card3"
    device.bus = "pci"
    device.vendor.id = "10de"
    device.vendor.name = "NVIDIA Corporation"
    device.product.id = "0fba"
    device.string = "3"
    device.description = "HDA NVidia"
    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-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5200, available: unknown)
    output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 100, available: unknown)
    output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 100, available: unknown)
    output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5200, available: unknown)
    output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 100, available: unknown)
    output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 100, available: unknown)
    off: Off (priority 0, available: unknown)
    active profile: <output:hdmi-stereo>
    sinks:
    alsa_output.pci-0000_01_00.1.hdmi-stereo/#0: HDA NVidia Digital Stereo (HDMI)
    sources:
    alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor/#0: Monitor of HDA NVidia 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: yes)
    properties:
    device.icon_name = "video-display"
    device.product.name = "S27C350
    hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
    properties:
    device.icon_name = "video-display"
    hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
    properties:
    device.icon_name = "video-display"
    index: 1
    name: <alsa_card.pci-0000_00_1b.0>
    driver: <module-alsa-card.c>
    owner module: 8
    properties:
    alsa.card = "2"
    alsa.card_name = "HDA Intel PCH"
    alsa.long_card_name = "HDA Intel PCH at 0xf7230000 irq 31"
    alsa.driver_name = "snd_hda_intel"
    device.bus_path = "pci-0000:00:1b.0"
    sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card2"
    device.bus = "pci"
    device.vendor.id = "8086"
    device.vendor.name = "Intel Corporation"
    device.product.id = "8ca0"
    device.product.name = "9 Series Chipset Family HD Audio Controller"
    device.form_factor = "internal"
    device.string = "2"
    device.description = "Built-in Audio"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-card-pci"
    profiles:
    input:analog-stereo: Analog Stereo Input (priority 60, available: unknown)
    off: Off (priority 0, available: unknown)
    active profile: <input:analog-stereo>
    sources:
    alsa_input.pci-0000_00_1b.0.analog-stereo/#1: Built-in Audio Analog Stereo
    ports:
    analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: no)
    properties:
    device.icon_name = "audio-input-microphone"
    analog-input-rear-mic: Rear Microphone (priority 8200, latency offset 0 usec, available: no)
    properties:
    device.icon_name = "audio-input-microphone"
    analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
    properties:
    index: 2
    name: <alsa_card.pci-0000_04_02.0>
    driver: <module-alsa-card.c>
    owner module: 9
    properties:
    alsa.card = "0"
    alsa.card_name = "SB Audigy 2 ZS [SB0350]"
    alsa.long_card_name = "SB Audigy 2 ZS [SB0350] (rev.4, serial:0x20021102) at 0xd000, irq 17"
    alsa.driver_name = "snd_emu10k1"
    device.bus_path = "pci-0000:04:02.0"
    sysfs.path = "/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/0000:04:02.0/sound/card0"
    device.bus = "pci"
    device.vendor.id = "1102"
    device.vendor.name = "Creative Labs"
    device.product.id = "0004"
    device.product.name = "SB Audigy (2 ZS (SB0350))"
    device.string = "0"
    device.description = "SB Audigy (2 ZS (SB0350))"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-card-pci"
    profiles:
    input:multichannel: Multichannel Input (priority 1, available: unknown)
    off: Off (priority 0, available: unknown)
    active profile: <input:multichannel>
    sources:
    alsa_input.pci-0000_04_02.0.multichannel/#2: SB Audigy (2 ZS (SB0350)) Multichannel
    sound works if i manually load the modules for my audigy and my intel sound card and set them as defaults, but this stinks because alsa seems to randomly renumber the cards after reboot
    I hope for some helpful input
    thanks harlequix

    Why do you use alsa and pulseaudio at the same time? You could have only pulseaudio and in, for an example, pavucontrol (gui for pulseaudio settings) you could choos which should be first, and rest mark as the spare. If you want to use pulse and alsa (in my case i have this option because i use mainly alsa and pulseaudio only for skype) you could set index for alsa (you have to crate file in /etc/modprobe.d/ and name it alsa-base.conf) and configure pulse to not grab alsa hadrware by editing /etc/pulse/default.pa. Both of these metods are explained on archwiki in pulseaudio and alsa pages.
    BTW - about nvidia hdmi. nvidia sound chip use the same driver, that intel hda does:
    lspci -vvvv
    01:00.1 Audio device: NVIDIA Corporation GK106 HDMI Audio Controller (rev a1)
    Subsystem: Gigabyte Technology Co., Ltd Device 354e
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0, Cache Line Size: 64 bytes
    Interrupt: pin B routed to IRQ 17
    Region 0: Memory at f6080000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel
    but also something that in my opinion is an front end for it:
    [firekage@arch_desktop ~]$ lsmod | grep snd_
    snd_hda_codec_hdmi 49263 1
    snd_usbmidi_lib 27571 0
    snd_rawmidi 26806 1 snd_usbmidi_lib
    snd_seq_device 13307 1 snd_rawmidi
    snd_hda_intel 26387 2
    snd_hda_controller 26857 1 snd_hda_intel
    snd_hda_codec 112621 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller
    snd_ctxfi 104184 3
    snd_hwdep 17244 1 snd_hda_codec
    snd_pcm 88779 6 snd_ctxfi,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
    snd_timer 26614 1 snd_pcm
    snd 73436 19 snd_ctxfi,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_rawmidi,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
    soundcore 13031 2 snd,snd_hda_codec
    usbcore 199382 9 uas,usblp,uvcvideo,usb_storage,snd_usbmidi_lib,ehci_hcd,ehci_pci,usbhid
    [firekage@arch_desktop ~]$
    you should see snd_hda_codec_hdmi and _snd_hda_codec.
    Last edited by firekage (2015-04-10 22:24:50)

  • ALSA often doesn't produce sound anymore after suspend

    Hi,
    For some years this has been fine and pulseaudio worked fine after waking up from suspend.
    But for about one or two month it more and more often doesn't. After waking up from suspend I just don't hear sound anymore. I can't find any error message anywhere, just that it doesn't output sound anymore. Killing it with "pulseaudio -k" or "pkill pulseaudio" or "pkill -9 pulseaudio" doesn't solve it. But "telinit 1", waiting until pulseaudio is dead and then "telinit 5" solves it so it is definitely not my sound driver.
    00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
    Any ideas how I can find out what's wrong?
    Last edited by Cdh (2012-05-10 19:48:45)

    Maybe the power saving for my sound chip triggered the problem. I had this in my startup config:
    echo 1 > /sys/module/snd_hda_intel/parameters/power_save
    I have removed it and hadn't had that problem so far. If it doesn't happen in the next time I'll mark this as solved. :-/
    EDIT:
    Nope, it didn't help. Today after waking up from suspend it didn't output any sound although everything seemed fine.
    This time I tried transferring the sound over the network with pulseaudio. That worked.
    Then I killed everything and even went to init 1. But there not even mplayer -ao alsa worked and I had to reboot to get my sound back. So, not pulseaudio's fault, but alsa doesn't work right.
    Linux chrisl 3.4.0-1-mainline #1 SMP PREEMPT Mon May 7 11:06:02 UTC 2012 x86_64 Intel(R) Core(TM) i5 CPU M 480 @ 2.67GHz GenuineIntel GNU/Linux
    Last edited by Cdh (2012-05-10 19:51:19)

  • [SOLVED] Audio dropouts with USB sound card

    Hi! Recently I bought an external USB sound card (Music Fidelity V-DAC). If I plug in the USB cable the sound device is recognized by Phonon in KDE4 (kdemod).
    If I play an audio file in Amarok (or VLC) the audio is indeed redirected to the USB sound card and played correctly. However, if I use my USB mouse, or USB keyboard dropouts are occurring in the audio signal. It seems that other USB devices are interfering with my USB sound card.
    More details:
    Arch Linux with kernel 2.6.33 and kdemod 4. Phonon backend is Xine. I also tried gstreamer, but this crashes Amarok/
    $ cat /proc/asound/cards
    0 [Intel ]: HDA-Intel - HDA Intel
    HDA Intel at 0xfebfc000 irq 29
    1 [default ]: USB-Audio - USB Audio DAC
    Burr-Brown from TI USB Audio DAC at usb-0000:00:1d.1-1, full s
    $ dmesg | grep Audio
    input: Burr-Brown from TI USB Audio DAC as /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.2/input/input12
    generic-usb 0003:08BB:2706.0003: input,hidraw2: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-0000:00:1d.1-1/input2
    input: Burr-Brown from TI USB Audio DAC as /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.2/input/input15
    generic-usb 0003:08BB:2706.0005: input,hidraw2: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-0000:00:1d.1-1/input2
    I also tried an Ubuntu (9.10) live CD. Using ALSA or Pulseaudio a clean audio signal without dropouts is produced.
    I wonder if someone can help me with this problem, or point me to more information. Thanks!
    Last edited by boomerang (2010-04-25 17:47:15)

    Thanks for your suggestion. I added the following line to my /etc/modprobe.d/modprobe.conf file:
    options snd-usb-audio enable_msi=1
    After a reboot the problem still persists. I also tried another suggestion from this forum:
    options snd-usb-audio nrpacks=1
    This doesn't work either. I tried to change settings in /etc/security/limits.conf, which looks like this:
    @audio - rtprio 99
    @audio - nice -10
    @audio - memlock 250000
    The USB sound card doesn't share a IRQ with another USB devices, as can be seen here:
    $cat /proc/interrupts
    CPU0 CPU1
    0: 124157 0 IO-APIC-edge timer
    1: 2102 0 IO-APIC-edge i8042
    8: 182 0 IO-APIC-edge rtc0
    9: 523 0 IO-APIC-fasteoi acpi
    12: 3780 0 IO-APIC-edge i8042
    14: 15944 0 IO-APIC-edge ata_piix
    15: 5177 0 IO-APIC-edge ata_piix
    16: 29001 0 IO-APIC-fasteoi uhci_hcd:usb5, firewire_ohci, nvidia
    17: 0 0 IO-APIC-fasteoi mmc0
    18: 0 0 IO-APIC-fasteoi uhci_hcd:usb4
    19: 44788 0 IO-APIC-fasteoi uhci_hcd:usb3
    23: 387 0 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2
    28: 1608 0 PCI-MSI-edge eth0
    29: 932 0 PCI-MSI-edge hda_intel
    30: 0 0 PCI-MSI-edge iwl3945
    NMI: 0 0 Non-maskable interrupts
    LOC: 22401 65060 Local timer interrupts
    SPU: 0 0 Spurious interrupts
    PMI: 0 0 Performance monitoring interrupts
    PND: 0 0 Performance pending work
    RES: 89856 104215 Rescheduling interrupts
    CAL: 1409 563 Function call interrupts
    TLB: 1733 2536 TLB shootdowns
    TRM: 0 0 Thermal event interrupts
    THR: 0 0 Threshold APIC interrupts
    MCE: 0 0 Machine check exceptions
    MCP: 2 2 Machine check polls
    ERR: 0
    MIS: 0
    $ lsusb
    Bus 003 Device 002: ID 046d:c03d Logitech, Inc. M-BT96a Pilot Optical Mouse
    [b]Bus 003 Device 003: ID 08bb:2706 Texas Instruments Japan [/b]
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 002: ID 07ab:fc88 Freecom Technologies
    Bus 001 Device 006: ID 05e1:0501 Syntek Semiconductor Co., Ltd DC-1125 Webcam
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 002: ID 046d:c317 Logitech, Inc. Wave Corded Keyboard
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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    I even tried to disable the internal sound card by blacklisting it:
    blacklist snd-hda-intel
    .. but still no success
    Last edited by boomerang (2010-04-19 20:04:33)

  • Computer doesn't detect sound c

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