Hi!

Asus Crosshair VI Hero here with Linux 4.15.0-33-generic on Pop!_OS
18.04 (Ubuntu based). This problem is also affecting me, but I could fix
it more or less. I'm using alsa for this specific device, so the audio
control center for gnome is still usable and the DisplayPort audio
(AMDGPU) is still working.

In my case all I needed to do was loading the module this way:

pacmd load-module module-alsa-source device=hw:1,2

I found the corresponding device using the instructions from this web-
page:

https://frdmtoplay.com/gigabyte-front-panel-audio-with-linux/

It will make a duplicate entry on the audio input list of Gnome audio
settings, but now recording is working for me.

Once you try the command above and you verify it works, you can add it
to the default.pa file of pulse settings (/etc/pulse/default.pa or
~/.config/pulse/default.pa) and add it after the hardware detection (In
my case, line 58)

### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev 
support)
load-module module-detect
.endif

load-module module-alsa-source device=hw:1,2   <---- Add this line

Now with pulseaudio -k or restarting everything should be working
without needing to do anything

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1764965

Title:
  [Realtek ALC1220 ASUS PRIME X370] Recording is very slow and plays 10x
  faster

Status in sound-2.6 (alsa-kernel):
  New
Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Recording applications (audacity, arecord, gnome-sound-recorder)
  record extremely slowly (at what seems to be 0,1x speed), which means
  that at playback the sound is played at a very high pitch and much
  faster than the original.

  To help you understand the issue, I've attached an archive containing two 
files recorded at the same time, one with arecord -f cd and the other with a 
stand-alone Olympus recorder.
  A video of Audacity's behavior when trying to record is also available: 
https://youtu.be/Fe20eQNvZVA
  Look at the seconds hand of the xclock and how much it is moving before 
Audacity is done recording one second of audio.

  Things I've already tried:
  *  Purging and reinstalling Audacity
  *  Purging and reinstalling Pulseaudio following the guide on the Ubuntu Wiki
  *  Running audacity with this command: Exec=env PULSE_LATENCY_MSEC=30 
audacity as suggested on AskUbuntu
  *  Reinstalling Ubuntu on a new hard disk
  *  Running audacity on a live CD (in Ubuntu version 16.04.3, 17.10.1, 18.04 
daily and Xubuntu 17.10.1, 18.04)

  The machine is a Ryzen 5 1600 with an ASUS X370 Prime motherboard.

  The problem can be reproduced as follows:

  * Boot a live DVD of Ubuntu/Xubuntu 16.04.3, 17.10.1, 18.04 (versions I've 
tested with)
  * Install audacity via the terminal
  * Start recording, microphone is connected to the rear microphone jack.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.13.0-38.43~16.04.1-generic 4.13.16
  Uname: Linux 4.13.0-38-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.16
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jacopo     2417 F.... pulseaudio
   /dev/snd/controlC0:  jacopo     2417 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr 18 09:35:50 2018
  InstallationDate: Installed on 2018-03-03 (45 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 
(20170801)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaRecordingTest: ALSA recording test through plughw:Generic failed
  Symptom_Card: HD-Audio Generic - HD-Audio Generic
  Symptom_Jack: Pink Mic, Rear
  Symptom_Type: None of the above
  Title: [System Product Name, Realtek ALC1220, Pink Mic, Rear] Recording 
problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/06/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3805
  dmi.board.asset.tag: Default string
  dmi.board.name: PRIME X370-PRO
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr3805:bd03/06/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEX370-PRO:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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