[regression][, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts or crackling sound

[exactt]

sound is crackling after upgrade to Oneiric.
this happens also in Precise daily image from 2012-01-26.

Actually only the right channel is affected. The left one works fine. Stereo is therefore "crackling".

soundwise everything worked fine under Natty.

running Intel DQ67SW mainboard.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: max 1811 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xfe620000 irq 51'
   Mixer name : 'Intel CougarPoint HDMI'
   Components : 'HDA:10ec0888,80862008,00100202 HDA:80862805,80862008,00100000'
   Controls : 39
   Simple ctrls : 22
Date: Wed Oct 12 14:55:31 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Internes Audio - HDA Intel PCH
Symptom_Jack: Green Line Out, Rear
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts or crackling sound
UpgradeStatus: Upgraded to oneiric on 2011-10-12 (0 days ago)
dmi.bios.date: 09/21/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: SWQ6710H.86A.0055.2011.0921.1044
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DQ67SW
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG12527-302
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrSWQ6710H.86A.0055.2011.0921.1044:bd09/21/2011:svn:pn:pvr:rvnIntelCorporation:rnDQ67SW:rvrAAG12527-302:cvn:ct3:cvr:
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-08-23T16:29:32.248193

[exactt (giesbert)]

i can confirm that sound is fine when only listening to the left channel. In the "Audio" setting panel I see the following strange behaviour on the output tab: when moving balance to the right channel the volume slider and the drop-down menu at the bottom start to "flicker/move around/change between the entries"....

[exactt (giesbert)]

Just retestet using kernel 3.2.0-030200rc1-generic #201111071935 SMP Tue Nov 8 00:37:52 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

Sadly nothing changed: Sound still stutters if using both channels or adjusting volume...

[exactt (giesbert)]

http://www.alsa-project.org/db/?f=850a80af8ba6b09d5a512feb7eab5e0cbbaec511

[exactt (giesbert)]

as requested in step 4 of https://help.ubuntu.com/community/SoundTroubleshootingProcedure

[exactt (giesbert)]

Problem still exists. just wanted to add that only the right channel stutters and the left one is OK.

I will now test with the latest precise image and report back...

[exactt (giesbert)]

Same problem in Precise. Adjusted bug description accordingly.

[Launchpad Janitor (janitor)]

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

[exactt (giesbert)]

problem still here after upgrade to final version of Precise...

[exactt (giesbert)]

problem fixed for me. it was related to the front audio panel. after disconnecting the plug from the mobo I am back to stereo :-D

[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.]