*** This bug is a duplicate of bug 1256655 ***
https://bugs.launchpad.net/bugs/1256655
Just a guess, but have you tried setting the audio interface to different
sample rates? I have at least one audio device that can be set to a number
of rates but only works right at 48Khz. Try setting the pulseaudio default
sample rate to 48000 in /etc/pulse/daemon.conf. (I believe windows
defaults to 48000, but I could be wrong) Pulse defaults to 44100 because
there is at least one audio interface that works only at that speed and
most audio content on the web is at that rate.
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https://bugs.launchpad.net/bugs/1290611
Title:
[Clevo W65_67SZ, Intel Haswell HDMI, Digital Out, HDMI] crackling
sound and audio up a note
Status in “alsa-driver” package in Ubuntu:
Incomplete
Bug description:
installed pavucontrol to get the sound from HDMI but the result is
crackle sound and audio is up a note.
This problem exists on 13.10 and 14.04 not on 13.04. I noticed the
alsa info from 13.4 shows the soundcard:
00:03.0 Audio device: Intel Corporation Haswell HD Audio Controller (rev 06)
00:1b.0 Audio device: Intel Corporation Lynx Point High Definition Audio
Controller (rev 05)
while from 14.04
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High
Definition Audio Controller (rev 05)
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
Uname: Linux 3.13.0-16-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Mar 10 23:55:20 2014
InstallationDate: Installed on 2014-03-04 (6 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140302)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:HDMI failed
Symptom_Card: Built-in Audio - HDA Intel HDMI
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [W65_67SZ, Intel Haswell HDMI, Digital Out, HDMI] Underruns, dropouts
or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.03.03RTO
dmi.board.asset.tag: Tag 12345
dmi.board.name: W65_67SZ
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1.03.03RTO:bd12/05/2013:svnNotebook:pnW65_67SZ:pvrNotApplicable:rvnNotebook:rnW65_67SZ:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
dmi.product.name: W65_67SZ
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
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