I'm going to mark this as invalid since it's clearly not an issue with
pulseaudio, I don't understand why it has enough bandwidth for HD video,
but not for a single audio channel... but that requires more research
and a different bug, perhaps the USB system pools USB 1.1 and USB 2.0
bandwidth separately.
** Changed in: pulseaudio (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1134915
Title:
4th USB audio device cannot record.
Status in “pulseaudio” package in Ubuntu:
Invalid
Bug description:
Not completely sure if this is pulseaudio or the underlying ALSA...
but I have 3 working USB audio devices, when I plug in the 4th it is
not possible to record from it. You can play back to any of the 4
devices, but, whichever is plugged in last cannot be recorded from,
and shows up without a vu meter in pavucontrol (Even tho it has volume
sliders!)
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: pulseaudio 1:3.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-7.15-generic 3.8.0
Uname: Linux 3.8.0-7-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Wed Feb 27 23:15:17 2013
InstallationDate: Installed on 2013-01-19 (39 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130118)
MarkForUpload: True
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/20/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1253
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8P67 PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1253:bd01/20/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8P67PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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