Public bug reported:
Sound quality is poor, especially at high volumes. Within the sound
settings menu an output flicks on and off causing a slight crackle in
the speakers but noticeably interrupts music. It disappears too fast for
me to be able to identify what it is, but it coincides with the
crackles.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: stefan 2385 F.... pulseaudio
/dev/snd/controlC0: stefan 2385 F.... pulseaudio
Date: Sat Feb 8 11:19:08 2014
InstallationDate: Installed on 2013-10-31 (99 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Green Line Out, Rear
Symptom_Type: Digital clip or distortion, or "overdriven" sound
Title: [Z87N-WIFI, Realtek ALC892, Green Line Out, Rear] Sound is distorted
UpgradeStatus: Upgraded to saucy on 2013-10-31 (99 days ago)
dmi.bios.date: 05/16/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F2
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z87N-WIFI
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF2:bd05/16/2013:svnGigabyteTechnologyCo.,Ltd.:pnZ87N-WIFI:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ87N-WIFI:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: Z87N-WIFI
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug saucy third-party-packages
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https://bugs.launchpad.net/bugs/1277846
Title:
[Z87N-WIFI, Realtek ALC892, Green Line Out, Rear] Sound is distorted
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