Public bug reported:
Ubuntu 13.04
pulseaudio 1:3.0-0ubuntu6
I have a problem with an "E-MU Tracker Pre" USB audio card and Kubuntu.
When I start the audio card for the first time since boot everything
works fine, but after turning it off and on again, regardless of the
delay between restarting it, it will almost certainly fail to boot up.
All the lights are lit up and stay like that, which is its loading
sequence and should turn off in a second, but they stay frozen like
that.
I can see the card in my /dev but if I try to open the sound manager or
echo/cat some data directly from/to the card the window freezes until I
turn off the card. There is a chance that the card will be recognized
properly if I repeatedly turn it on and off, and it has happened once in
a blue moon, but I haven't thoroughly tested it as I do not want to burn
it.
Moving the AC to another USB port does not help and I can confirm that
the problem did not exist in Ubuntu 11.x/12.x
The problem is gone after reboot for one launch of the AC and then
reappears again. As it significantly hurts my creative flow I cannot
settle for this as a 'solution'.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: pulseaudio 1:3.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
Uname: Linux 3.8.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: tecs 2812 F.... pulseaudio
/dev/snd/controlC1: tecs 2812 F.... pulseaudio
/dev/snd/controlC0: tecs 2812 F.... pulseaudio
Date: Fri Oct 11 22:45:23 2013
InstallationDate: Installed on 2013-01-30 (254 days ago)
InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120820.1)
MarkForUpload: True
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to raring on 2013-04-27 (167 days ago)
dmi.bios.date: 05/07/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0410
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8B75-M LE
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.:bvr0410:bd05/07/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8B75-MLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug raring
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https://bugs.launchpad.net/bugs/1238944
Title:
USB Audio card fails to initialize after turning it off and on again
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