[ASRock Z77 Extreme4, Realtek ALC898, Green Headphone Out, Front] Underruns, dropouts or crackling sound

[Carlos Fornieles Montoya]

I just upgraded to Quantal but I had the same issue on precise pandolin. Sound randomly stutters. Sometimes it takes 5 minutes to happen sometimes it will happen twice in a 10 second interval. I have version 1.0.25-3ubuntu3 of alsa. I tried the workarounds outlined in https://wiki.ubuntu.com/Audio/PositionReporting hence my modified alsa file.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: carlos 2308 F.... xfce4-volumed
                      carlos 2314 F.... pulseaudio
 /dev/snd/pcmC0D0p: carlos 2314 F...m pulseaudio
Date: Sun Oct 21 10:15:47 2012
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Green Headphone Out, Front
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [To Be Filled By O.E.M., Realtek ALC898, Green Headphone Out, Front] Underruns, dropouts or crackling sound
UpgradeStatus: Upgraded to quantal on 2012-10-21 (0 days ago)
dmi.bios.date: 09/13/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.20
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.20:bd09/13/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-10-20T09:41:41.486517

[Launchpad Janitor (janitor)]

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

[Raymond (superquad-vortex2)]

did this hapeen after suspend resume since there are quite many udev event in your pulseaudio log ?

0 mBm)
[ 2792.763765] PM: Syncing filesystems ... done.
[ 2792.766679] PM: Preparing system for mem sleep
[ 2793.160731] Freezing user space processes ... (elapsed 0.01 seconds) done.
[ 2793.173489] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
[ 2793.189471] PM: Entering mem sleep
[ 2793.189535] Suspending console(s) (use no_console_suspend to debug)
[ 2793.190291] sd 2:0:0:0: >[sda] Synchronizing SCSI cache
[ 2793.192450] xhci_hcd 0000:06:00.0: >WARN Event TRB for slot 1 ep 3 with no TDs queued?
[ 2793.192452] xhci_hcd 0000:06:00.0: >WARN Event TRB for slot 1 ep 2 with no TDs queued?
[ 2793.192453] xhci_hcd 0000:06:00.0: >WARN Event TRB for slot 1 ep 0 with no TDs queued?
[ 2793.192460] xhci_hcd 0000:00:14.0: >WARN Event TRB for slot 2 ep 3 with no TDs queued?
[ 2793.192461] xhci_hcd 0000:00:14.0: >WARN Event TRB for slot 2 ep 2 with no TDs queued?
[ 2793.192461] xhci_hcd 0000:00:14.0: >WARN Event TRB for slot 2 ep 0 with no TDs queued?
[ 2793.192530] xhci_hcd 0000:00:14.0: >WARN Event TRB for slot 1 ep 0 with no TDs queued?
[ 2793.192747] serial 00:0b: >disabled
[ 2793.192750] serial 00:0b: >wake-up capability disabled by ACPI
[ 2793.214498] sd 2:0:0:0: >[sda] Stopping disk
[ 2793.297364] PM: suspend of drv:ehci_hcd dev:0000:00:1a.0 complete after 104.271 msecs
[ 2793.417289] PM: suspend of drv:snd_hda_intel dev:0000:00:1b.0 complete after 224.271 msecs

[Carlos Fornieles Montoya (everolth)]

Hi Raymond,

I'll reproduce the issue later today and let you know whether suspending was required to reproduce it. It has been a while since I raised this so I can' tell you for sure right now.

Cheers,

Carlos

[Carlos Fornieles Montoya (everolth)]

Hi,

Actually I can no longer reproduce this issue. When I started experiencing this I started using another soundcard instead of the motherboard one. I upgraded the box to Quantal and I've been trying to reproduce this since then and I've been unable to, hence this must have been fixed at some point, presumably when I upgraded to Quantal.

Cheers,

Carlos

[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.]