[Gazelle Professional, VIA VT1802, Mic, Internal] No sound at all

[Mike Olson]

I did a fresh install of Raring and used my internal mic successfully. But I installed updates today and now my mic isn't working at all. I've checked the alsamixer and unmuted everything and still nothing from the mic. Any ideas? Is there anyway to reset my audio subsystem?

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mike 9746 F.... pulseaudio
 /dev/snd/pcmC0D0c: mike 9746 F...m pulseaudio
 /dev/snd/timer: mike 9746 f.... pulseaudio
Date: Wed May 15 19:19:58 2013
InstallationDate: Installed on 2013-05-12 (2 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mike 9746 F.... pulseaudio
Symptom_Jack: Mic, Internal
Symptom_Type: No sound at all
Title: [Gazelle Professional, VIA VT1802, Mic, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/27/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: Gazelle Professional
dmi.board.vendor: System76, Inc.
dmi.board.version: gazp8
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd09/27/2012:svnSystem76,Inc.:pnGazelleProfessional:pvrgazp8:rvnSystem76,Inc.:rnGazelleProfessional:rvrgazp8:cvnNoEnclosure:ct9:cvrN/A:
dmi.product.name: Gazelle Professional
dmi.product.version: gazp8
dmi.sys.vendor: System76, Inc.

[Mike Olson (mike-olson3)]

OK, I fixed it finally by installing the PulseAudio Volume Control and re-selecting the internal mic as the input and then rebooting. I guess this can serve as a good workaround for now. This problem seems to occur after resuming from standby.

[Raymond (superquad-vortex2)]

Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Mic' 'Internal Mic' 'Stereo Mixer'
  Item0: 'Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Mic' 'Internal Mic' 'Stereo Mixer'
  Item0: 'Mic'

[Mike Olson (mike-olson3)]

Thanks for updating the bug report, but I'm not sure what to do with the provided information - are these settings I need to configure somewhere?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Raymond (superquad-vortex2)]

auto Mic selection between internal Mic and external Mic is not possible after the addition of stereo mix input which allow you select the audio mixer 0x21 as input source which contain the signal from the audio output

Node 0x1e [Audio Selector] wcaps 0x300501: Stereo
  Control: name="Input Source", index=0, device=0
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 5
     0x2b* 0x2a 0x29 0x21 0x30

pcm loopback playback switch and volume control the input from the hidden connection from node 0x08 (idx=3) which is the hidden fourth entry in the connection list

Node 0x21 [Audio Mixer] wcaps 0x20050b: Stereo Amp-In
  Control: name="PCM Loopback Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=3, ofs=0
  Control: name="PCM Loopback Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=3, ofs=0
  Control: name="Mic Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Internal Mic Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=2, ofs=0
  Control: name="Internal Mic Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=2, ofs=0
  Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals: [0x18 0x18] [0x80 0x80] [0x17 0x17]
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 3
     0x2b 0x2a 0x29

Simple mixer control 'PCM Loopback',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 23 [74%] [0.00dB] [on]
  Front Right: Playback 23 [74%] [0.00dB] [on]

the headphone and speaker are connected to audio output 0x08 and 0x09 through audio mixer 0x21 when loopback mixing is enabled instead of through audio selector 0x34 and 0x35

Simple mixer control 'Loopback Mixing',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'

Node 0x14 [Audio Mixer] wcaps 0x20050b: Stereo Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x80 0x80]
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x34 0x21
Node 0x15 [Audio Mixer] wcaps 0x20050b: Stereo Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x80 0x80]
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x35 0x21

Node 0x34 [Audio Selector] wcaps 0x300501: Stereo
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x08* 0x09
Node 0x35 [Audio Selector] wcaps 0x300501: Stereo
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x08 0x09*

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]