Public bug reported:
Chrome plays audio+video in fast forward when using the Pepper version
of Shockwave Flash 11.3 r31 running on Ubuntu Precise Pangolin x86_64.
This is particularly obvious when using Pandora or YouTube.
I initially believed this to be a Chrome+Pepper+Shockwave issue and
reported it to Google. The problem went away after a reboot, but
returned a couple of days later. I started looking to see if I could
kill the Chrome thread that contained the errant instance of Flash, but
I noticed that pulseaudio was using more CPU than expected. On a whim,
I killall'ed pulseaudio, hit the reload button in my Pandora window, and
the audio started playing normally again.
This workaround (killing pulseaudio) suggests that the fix for this
issue could lie within pulseaudio. The annoying thing is that this bug
takes several days to manifest itself, so it's hard to verify a fix.
Also, I'm running Ubuntu on a laptop that moves between my office and
home daily, so the problem could be even more subtle than it appears.
In any case, I hope that this can help narrow down the issue.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu15.1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lukescharf 7936 F.... pulseaudio
/dev/snd/pcmC0D0p: lukescharf 7936 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc4820000 irq 50'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,1179062e,00100100
HDA:80862805,11790001,00100000'
Controls : 25
Simple ctrls : 12
Date: Tue Jul 10 15:53:11 2012
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to precise on 2012-03-13 (119 days ago)
dmi.bios.date: 12/05/2011
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 3.50
dmi.board.asset.tag: 0000000000
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.asset.tag: 0000000000
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: Version 1.0
dmi.modalias:
dmi:bvnTOSHIBA:bvrVersion3.50:bd12/05/2011:svnTOSHIBA:pnPORTEGER835:pvrPT324U-008003:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
dmi.product.name: PORTEGE R835
dmi.product.version: PT324U-008003
dmi.sys.vendor: TOSHIBA
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/1023155
Title:
Chrome+Pepper+Flash plays audio+video in fast-forward after several
days of uptime; killall pulseaudio fixes it.
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