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[BeowulfOF <1498355@xxxxxxxxxxxxxxxxxx>]

@Joseph, I went back and tried my former versions of the kernel back to
3.19.0-26-generic. But I can't really get USB to work.

Connecting an android phone leaves traces in dmesg though:
[  238.379033] usb 2-1.1: new low-speed USB device number 4 using ehci-pci
[  238.451090] usb 2-1.1: device descriptor read/64, error -32
[  238.627144] usb 2-1.1: device descriptor read/64, error -32
[  238.803191] usb 2-1.1: new low-speed USB device number 5 using ehci-pci
[  238.875117] usb 2-1.1: device descriptor read/64, error -32
[  239.051166] usb 2-1.1: device descriptor read/64, error -32
[  239.227180] usb 2-1.1: new low-speed USB device number 6 using ehci-pci
[  239.635166] usb 2-1.1: device not accepting address 6, error -32
[  239.707167] usb 2-1.1: new low-speed USB device number 7 using ehci-pci
[  240.115213] usb 2-1.1: device not accepting address 7, error -32
[  240.115324] usb 2-1-port1: unable to enumerate USB device

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https://bugs.launchpad.net/bugs/1498355

Title:
  USB devices gratefully ignored

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Since two days I encounter a problem when I attach USB-Devices
  (Printer/Scanner/Android-Device) the device is not recognized, even
  dmesg does not state anything about the USB-port. The only thing that
  works is my USB-Keyboard, wich is already connected on startup.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-23-generic 3.19.0-23.24
  ProcVersionSignature: Ubuntu 3.19.0-23.24-generic 3.19.8-ckt2
  Uname: Linux 3.19.0-23-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  beowulf    1877 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Tue Sep 22 10:16:06 2015
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=fef96f58-12f3-4550-aae6-a6ff03dcdeee
  MachineType: LENOVO 42435GG
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 nouveaufb
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-23-generic root=UUID=1e29046d-a96e-46e8-a998-29b6af3fb002 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-23-generic N/A
   linux-backports-modules-3.19.0-23-generic  N/A
   linux-firmware                             1.143.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/15/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8AET52WW (1.32 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 42435GG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8AET52WW(1.32):bd09/15/2011:svnLENOVO:pn42435GG:pvrThinkPadT520:rvnLENOVO:rn42435GG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 42435GG
  dmi.product.version: ThinkPad T520
  dmi.sys.vendor: LENOVO

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