[MS-7920, Realtek ALC1150, Red Line Out, Rear] Underruns, dropouts or crackling sound

[nandemonai]

Sound appears to have trouble buffering at times playing too fast or slow and glitching like a bad mp3.

Posts here have not resolved the issue:

http://askubuntu.com/questions/464877/ubuntu-14-04-sound-glitch

https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1019693 - Not 100% it's the same issue

http://askubuntu.com/questions/157554/choppy-stuttery-sped-up-sound-after-update

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: nandemonai 2849 F.... pulseaudio
 /dev/snd/controlC2: nandemonai 2849 F.... pulseaudio
 /dev/snd/controlC0: nandemonai 2849 F.... pulseaudio
CurrentDesktop: GNOME
Date: Tue Jul 15 10:30:01 2014
InstallationDate: Installed on 2014-07-05 (9 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Red Line Out, Rear
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [MS-7920, Realtek ALC1150, Red Line Out, Rear] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/22/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.0
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97I GAMING AC (MS-7920)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.0:bd04/22/2014:svnMSI:pnMS-7920:pvr1.0:rvnMSI:rnZ97IGAMINGAC(MS-7920):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7920
dmi.product.version: 1.0
dmi.sys.vendor: MSI

[Daniel Letzeisen (dtl131)]

Probably duplicate of: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1321421

Try workaround command and mark duplicate if it works.
echo "options snd-hda-intel vid=8086 pid=8ca0 snoop=0" | sudo tee /etc/modprobe.d/fix-sound-intel97.conf

[nandemonai (junin-toiro)]

Above fix works, marking as a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1321421.