Sound input on Fedora 15

[Michael Eager]

Sound output through my motherboard's Intel HDA ACL888 works OK.
Sound input does not work.

Alsa lists the ACL888 as well as a video capture card.
Pulseaudio (pacmd list-sources) shows the card and says that it only has
internal audio monitor, not hardware input.

Any suggestions on how to fix this?

# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 2: ALC888 Analog [ALC888 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: Bt878 [Brooktree Bt878], device 0: Bt87x Digital [Bt87x Digital]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
card 1: Bt878 [Brooktree Bt878], device 1: Bt87x Analog [Bt87x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

# pacmd
list-sources
2 source(s) available.
     index: 0
         name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
         driver: <module-alsa-card.c>
         flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
         state: RUNNING
         suspend cause:
         priority: 1950
         volume: 0: 100% 1: 100%
                 0: 0.00 dB 1: 0.00 dB
                 balance 0.00
         base volume: 100%
                      0.00 dB
         volume steps: 65537
         muted: no
         current latency: 0.00 ms
         max rewind: 344 KiB
         sample spec: s16le 2ch 44100Hz
         channel map: front-left,front-right
                      Stereo
         used by: 1
         linked by: 1
         configured latency: 20.00 ms; range is 0.50 .. 1999.82 ms
         monitor_of: 0
         card: 0 <alsa_card.pci-0000_00_1b.0>
         module: 4
         properties:
                 device.description = "Monitor of Internal Audio Analog Stereo"
                 device.class = "monitor"
                 alsa.card = "0"
                 alsa.card_name = "HDA Intel"
                 alsa.long_card_name = "HDA Intel at 0xf9ff8000 irq 310"
                 alsa.driver_name = "snd_hda_intel"
                 device.bus_path = "pci-0000:00:1b.0"
                 sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                 device.bus = "pci"
                 device.vendor.id = "8086"
                 device.vendor.name = "Intel Corporation"
                 device.product.id = "293e"
                 device.product.name = "82801I (ICH9 Family) HD Audio Controller"
                 device.form_factor = "internal"
                 device.string = "0"
                 module-udev-detect.discovered = "1"
                 device.icon_name = "audio-card-pci"

[Michael Wiktowy]

On Wed, Jun 1, 2011 at 7:17 PM, Michael Eager  wrote:
> Sound output through my motherboard's Intel HDA ACL888 works OK.
> Sound input does not work.
>
> Alsa lists the ACL888 as well as a video capture card.
> Pulseaudio (pacmd list-sources) shows the card and says that it only has
> internal audio monitor, not hardware input.
>
> Any suggestions on how to fix this?

I would check pavucontrol and see if anything is turned off or using
the wrong Profile in the Configuration Tab.

Also, I have an Intel HDA internal sound card that doesn't give me any
input levels until I go into pavucontrol, unlock the sliders on the
input channel and decrease the R or L slider.

Just two suggestions that have worked for me in the past to get sound
input working.

/Mike

[Michael Eager]

On 06/01/2011 03:34 PM, Michael Wiktowy wrote:
> On Wed, Jun 1, 2011 at 7:17 PM, Michael Eager  wrote:
> > Sound output through my motherboard's Intel HDA ACL888 works OK.
> > Sound input does not work.
> >
> > Alsa lists the ACL888 as well as a video capture card.
> > Pulseaudio (pacmd list-sources) shows the card and says that it only has
> > internal audio monitor, not hardware input.
> >
> > Any suggestions on how to fix this?
>
> I would check pavucontrol and see if anything is turned off or using
> the wrong Profile in the Configuration Tab.

Well, it's not clear which of the dozen profiles is the right one.  :-)

Selecting "Analog Stereo Duplex" does result in the Input Devices
showing "Internal Audio Analog Stereo" with three options "Line-In",
"Microphone 1" and "Microphone 2".  The blue VU meter bar for "Line-In"
is jumping around, which is progress.  Clicking the "mute" button
makes it stop and start, which is good.  But nothing comes out the
speakers.

Using a different Mike W.'s suggestion, I ran
"pactl load-module module-loopback".  Suddenly there is sound!!!

I added the line "load-module module-loopback" to /etc/pulse/default.pa
and the change persists across a reboot.

Whew!!!  It should not be this difficult to set up sound.

Thanks Mike & Mike!

[Mike Wright]

On 06/01/2011 03:17 PM, Michael Eager wrote:
> Sound output through my motherboard's Intel HDA ACL888 works OK.
> Sound input does not work.
>
> Alsa lists the ACL888 as well as a video capture card.
> Pulseaudio (pacmd list-sources) shows the card and says that it only has
> internal audio monitor, not hardware input.
>
> Any suggestions on how to fix this?

If I understand you correctly the Line Input doesn't make it through the 
sound path.

pactl load-module module-loopback
SoundSettings->Input->Connector = Line-In

Now clicking on the speaker icon will show two volume sliders: Volume 
and Microphone.

hth
> # arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 2: ALC888 Analog [ALC888 Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
> card 1: Bt878 [Brooktree Bt878], device 0: Bt87x Digital [Bt87x Digital]
>     Subdevices: 0/1
>     Subdevice #0: subdevice #0
> card 1: Bt878 [Brooktree Bt878], device 1: Bt87x Analog [Bt87x Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
>
> # pacmd
> list-sources
> 2 source(s) available.
>       index: 0
>           name:<alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
>           driver:<module-alsa-card.c>
>           flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
>           state: RUNNING
>           suspend cause:
>           priority: 1950
>           volume: 0: 100% 1: 100%
>                   0: 0.00 dB 1: 0.00 dB
>                   balance 0.00
>           base volume: 100%
>                        0.00 dB
>           volume steps: 65537
>           muted: no
>           current latency: 0.00 ms
>           max rewind: 344 KiB
>           sample spec: s16le 2ch 44100Hz
>           channel map: front-left,front-right
>                        Stereo
>           used by: 1
>           linked by: 1
>           configured latency: 20.00 ms; range is 0.50 .. 1999.82 ms
>           monitor_of: 0
>           card: 0<alsa_card.pci-0000_00_1b.0>
>           module: 4
>           properties:
>                   device.description = "Monitor of Internal Audio Analog Stereo"
>                   device.class = "monitor"
>                   alsa.card = "0"
>                   alsa.card_name = "HDA Intel"
>                   alsa.long_card_name = "HDA Intel at 0xf9ff8000 irq 310"
>                   alsa.driver_name = "snd_hda_intel"
>                   device.bus_path = "pci-0000:00:1b.0"
>                   sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
>                   device.bus = "pci"
>                   device.vendor.id = "8086"
>                   device.vendor.name = "Intel Corporation"
>                   device.product.id = "293e"
>                   device.product.name = "82801I (ICH9 Family) HD Audio Controller"
>                   device.form_factor = "internal"
>                   device.string = "0"
>                   module-udev-detect.discovered = "1"
>                   device.icon_name = "audio-card-pci"