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[Bug 1304808] Re: All USB ports/devices randomly stop working



Thanks for the offer to help.  Can you test some prior kernel versions
to see when this issue was introduced.  It would be good to start with
newer kernels and work back.   We should test v3.13 final first, then
some 3.13 release candidates.  If they all have the bug, then test some
3.12 kernels.  We basically want to find the last good kernel and first
bad kernel.  All the kernel versions can be found at:


There are builds of the upstream kernels, but they should also exhibit
the bug, unless it was introduced by a SAUCE specific patch.

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  All USB ports/devices randomly stop working

Status in “linux” package in Ubuntu:

Bug description:
  I do not know how to reliably reproduce this, but since an update in
  trusty a couple of days ago I am getting a random USB device stop
  working and then they all start going one by one.  The mouse and
  keyboard included in this of course.

  This has happened to me before and it was fixed in saucy.  This is a

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-23-generic 3.13.0-23.45
  ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
  Uname: Linux 3.13.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC0:  ed         2480 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr  9 15:07:40 2014
  HibernationDevice: RESUME=UUID=73dd7b46-df18-4ae4-9a16-7e635959e1b1
   eth0      no wireless extensions.
   lo        no wireless extensions.
   virbr0    no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-23-generic root=UUID=38c98076-521e-408e-af6a-2e8e00de0f05 ro nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw
   linux-restricted-modules-3.13.0-23-generic N/A
   linux-backports-modules-3.13.0-23-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-01-20 (78 days ago)
  dmi.bios.date: 05/28/2008
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: ASUS M3N72-D ACPI BIOS Revision 0202
  dmi.board.name: M3N72-D
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: 1.XX
  dmi.chassis.asset.tag: 123456789000
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSM3N72-DACPIBIOSRevision0202:bd05/28/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N72-D:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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