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[Larry Tate <cathect@xxxxxxxxx>]

Seems like this might be related to Bug #1437492

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https://bugs.launchpad.net/bugs/1539919

Title:
  USB crippled after updates to 15.10

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  An update released this week (25th, 26th, 27th) have caused severe USB
  issues.

  When I boot, there is clearly a moment when USB is being accessed (my
  usb mic starts blinking) and this seems to paralyze the computer for
  several minutes and will not allow me to log in until it moves past
  this usb issue (light stops blinking on my mic). Once logged in, I
  have an invisible mouse, no sound. When rebooting, I get
  "usb_set_interface_failed" messages.

  My sound also doesn't work. My external sound card and all audio is
  not recognized.

  I think this is definitely software-related. I have a brand new, right out of the box, System76 machine that this happened to right after its first update. Because of this issue, I went back to my old machine. After performing an update, the problem appeared there too.
  ---
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=2e9e8093-947a-411e-95e3-6400303edeb2
  InstallationDate: Installed on 2014-02-09 (719 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: System76, Inc. Wild Dog Performance
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-25-generic root=UUID=e952bc6e-1919-48c4-8585-8d375ca7e28c ro quiet splash
  ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-25-generic N/A
   linux-backports-modules-4.2.0-25-generic  N/A
   linux-firmware                            1.149.3
  RfKill:

  Tags:  wily
  Uname: Linux 4.2.0-25-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-12-19 (41 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/01/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0105.2011.0301.1654
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-206
  dmi.chassis.type: 3
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: wilp8
  dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0105.2011.0301.1654:bd03/01/2011:svnSystem76,Inc.:pnWildDogPerformance:pvrwilp8:rvnIntelCorporation:rnDH67CL:rvrAAG10212-206:cvnSystem76,Inc.:ct3:cvrwilp8:
  dmi.product.name: Wild Dog Performance
  dmi.product.version: wilp8
  dmi.sys.vendor: System76, Inc.

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