[GA-890GPA-UD3H, Realtek ALC892, Green Line Out, Rear] Underruns, dropouts or crackling sound after running mumble

[Jean-Baptiste Lallement]

After running mumble sound on the analog output if really bad quality (crackling). Sound on digital output (with logitech proprietary dongle) is fine.
Killing pulseaudio fixes the problem.

It is reproducible with the following steps:
TEST CASE:
1. Switch to digital output
2. Start Mumble
3. Chat with your colleagues/friends
4. Exit Mumble
5. Switch to analog output and play something (radio whatever)

ACTUAL RESULT:
Bad quality output.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: pulseaudio 1:2.1-0ubuntu4
ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0
Uname: Linux 3.7.0-7-generic x86_64
ApportVersion: 2.7-0ubuntu2
Architecture: amd64
Date: Tue Jan 8 11:43:46 2013
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB successful
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_Jack: Green Line Out, Rear
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [GA-890GPA-UD3H, Realtek ALC892, Green Line Out, Rear] Underruns, dropouts or crackling sound
UpgradeStatus: Upgraded to raring on 2012-01-31 (342 days ago)
dmi.bios.date: 07/23/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: FD
dmi.board.name: GA-890GPA-UD3H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFD:bd07/23/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-890GPA-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-890GPA-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-890GPA-UD3H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[Launchpad Janitor (janitor)]

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

[Victor B. Gonzalez (vbgunz)]

I have this exact motherboard and audio is perfect near all around but voice capture from my microphone always has a slight popping static hissing sound at the tail end of my talk. It's not evident as I talk but that quarter second of being done talking always has those noises. It's irritating and upsetting.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 13.04 (raring) reached end-of-life on January 27, 2014.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

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