[System Product Name, VIA VT1708S, Green Line Out, Rear] Underruns, dropouts or crackling sound

[Alistair Buxton]

Crackling sound in Skype. I can "fix" the problem by setting

load-module module-hal-detect tsched=0

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC3: al 2025 F.... pulseaudio
 /dev/snd/controlC1: al 2025 F.... pulseaudio
 /dev/snd/controlC0: al 2025 F.... pulseaudio
Date: Sun Nov 18 09:13:07 2012
InstallationDate: Installed on 2012-11-08 (9 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB successful
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_Jack: Green Line Out, Rear
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [System Product Name, VIA VT1708S, Green Line Out, Rear] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0704
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A79XTD EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0X
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0704:bd11/25/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A79XTDEVO:rvrRevX.0X:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Raymond (superquad-vortex2)]

[150488.898221] INFO: task openshot:18102 blocked for more than 120 seconds.
[150488.898230] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[150488.898234] openshot D ffff880437cd39c0 0 18102 1 0x00000000
[150488.898244] ffff88032cc07c78 0000000000000082 ffff88041ced0000 ffff88032cc07fd8
[150488.898255] ffff88032cc07fd8 ffff88032cc07fd8 ffff8803f2432e00 ffff88041ced0000
[150488.898263] ffff88041ced0000 ffff88041ced0000 ffff880404101f80 ffff880404101fe0
[150488.898271] Call Trace:
[150488.898287] [<ffffffff81682459>] schedule+0x29/0x70
[150488.898296] [<ffffffff81057705>] exit_mm+0x85/0x130
[150488.898302] [<ffffffff81057909>] do_exit+0x159/0x8e0
[150488.898309] [<ffffffff810583ef>] do_group_exit+0x3f/0xa0
[150488.898317] [<ffffffff81067e19>] get_signal_to_deliver+0x1b9/0x5d0
[150488.898325] [<ffffffff810132bf>] do_signal+0x3f/0x610
[150488.898332] [<ffffffff8101a369>] ? read_tsc+0x9/0x20
[150488.898340] [<ffffffff81194893>] ? poll_select_copy_remaining+0xf3/0x140
[150488.898348] [<ffffffff81013938>] do_notify_resume+0x88/0xc0
[150488.898356] [<ffffffff8168b8e2>] int_signal+0x12/0x17
[150488.898362] INFO: task gdbus:18104 blocked for more than 120 seconds.
[150488.898365] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[150488.898368] gdbus D ffff880437c539c0 0 18104 1 0x00000000
[150488.898376] ffff8803f93dbc78 0000000000000082 ffff88018ba11700 ffff8803f93dbfd8
[150488.898384] ffff8803f93dbfd8 ffff8803f93dbfd8 ffff8803d0c51700 ffff88018ba11700
[150488.898391] ffff88018ba11700 ffff88018ba11700 ffff880404101f80 ffff880404101fe0
[150488.898398] Call Trace:
[150488.898407] [<ffffffff81682459>] schedule+0x29/0x70
[150488.898412] [<ffffffff81057705>] exit_mm+0x85/0x130
[150488.898418] [<ffffffff81057909>] do_exit+0x159/0x8e0
[150488.898424] [<ffffffff81194730>] ? __pollwait+0xf0/0xf0
[150488.898430] [<ffffffff81194730>] ? __pollwait+0xf0/0xf0
[150488.898436] [<ffffffff810583ef>] do_group_exit+0x3f/0xa0
[150488.898443] [<ffffffff81067e19>] get_signal_to_deliver+0x1b9/0x5d0
[150488.898450] [<ffffffff810132bf>] do_signal+0x3f/0x610
[150488.898457] [<ffffffff811c8c44>] ? eventfd_ctx_read+0xa4/0x1e0
[150488.898464] [<ffffffff81013938>] do_notify_resume+0x88/0xc0
[150488.898472] [<ffffffff8168b8e2>] int_signal+0x12/0x17

[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.]