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[ATIpro <somebody2112@xxxxxxxxx>]

Patch for resolving this bug was successfully backported to lts kernels
3.12 and 3.14. And only version 3.13, which is maintained by Ubuntu does
not have it. Is it so hard to apply it?

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https://bugs.launchpad.net/bugs/1316897

Title:
  [Sony VAIO SVT13136CXS] usb2 port does not work.

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  My laptop has two usb ports, one 2.0 and the other 3.0. The usb 2.0
  port does nothing. It seems to have power (a mp3 player took charge,
  but a cellphone did not) but shows no activity otherwise. Whatever I
  plug in it nothing happens. Nothing in dmesg, nor anything changes in
  lsusb. I've tried wireless mouse, pendrive, hdd, couple cellphones.

  WORKAROUND: Use USB 3.0 port.

  Upstream post: http://article.gmane.org/gmane.linux.usb.general/108173

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.47
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  xopxe      1503 F.... pulseaudio
                        xopxe     25455 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed May  7 00:45:14 2014
  HibernationDevice: RESUME=UUID=f93318de-f146-4e7e-bfc0-a4c0d3d727dd
  InstallationDate: Installed on 2013-06-16 (324 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Sony Corporation SVT13136CXS
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=ec2a5915-f3a3-4255-ae05-b0f50f2116d4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-19 (17 days ago)
  dmi.bios.date: 11/14/2012
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: R1100D4
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnInsydeCorp.:bvrR1100D4:bd11/14/2012:svnSonyCorporation:pnSVT13136CXS:pvrC904Z780:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVT13136CXS
  dmi.product.version: C904Z780
  dmi.sys.vendor: Sony Corporation

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