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[Bug 1395501] Re: input devices found, but there is no input level

 

This is now solved.

------ 1 ------
Headset jacks on newer laptops - http://voices.canonical.com/david.henningsson/2014/03/07/headset-jacks-on-newer-laptops/.

Solved by adding "options snd-hda-intel model=,dell-headset-multi" in
"/etc/modprobe.d/alsa-base.conf".


------ 2 ------
Pulseaudio remixing was disabled.

I had disabled Pulseaudio remixing to avoid upmixing of stereo audio
streams when using a multi-channel output (5.1 digital output).

Disabling Pulseaudio remixing gave problems when watching multi-channel
movies in Totem or VLC and using stereo output. I only got audio from
the front-left and front-right audio tracks, no audio from the center,
back-left and back-right audio tracks.

I therefor re-enabled Pulseaudio and at the same time I noticed that all
my mics suddenly worked fine again in Pulseadio!

Enable/disable Pulseaudio remixing is done in "/etc/pulse/daemon.conf",
look for "enable-remixing". It is enabled by default!

---------------
So this was not a bug, it was configuration problems caused by myself!

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Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1395501

Title:
  input devices found, but there is no input level

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  My input devices is found, but no not working. Get no input level from the devices.
  They are not muted!

  pavucontrol > Input Devices > no input level from any of my input devices!
  System settings > Sound > Input > no input level from any of my input devices!

  My computer is a Dell XPS 15 9530.
  Ubuntu 14.04
  Kernel release:    3.13.0-39-generic.

  ARECORD
  **** List of CAPTURE Hardware Devices ****
  card 1: G4ME1 [Sennheiser 3D G4ME1], device 0: USB Audio [USB Audio]
    Subdevices: 0/1
    Subdevice #0: subdevice #0
  card 2: PCH [HDA Intel PCH], device 0: ALC668 Analog [ALC668 Analog]
    Subdevices: 0/1
    Subdevice #0: subdevice #0

  "wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh && chmod +x ./alsa-info.sh && ./alsa-info.sh" gives:
  http://www.alsa-project.org/db/?f=916914afd5195a1d4ed40f3f38fa0d37285d1039

  Screenshot from alsamixer, pavucontrol and sound control menu.
  https://mrkr.io/pemHMWlKHR

  Teamspeak works fine, if I select recording device in pavucontrol for teamspeak.
  https://mrkr.io/5D0ZUSVyLC
  https://mrkr.io/T6nQX77HAD

  Testing in skype, no input is registered!
  https://mrkr.io/xMbrev28bR
  https://mrkr.io/zqu6AFVjld

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References