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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Pending results of
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250488/comments/6
.

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1250488

Title:
  [Acer Aspire V3-571G] USB hub stopped working on a given USB port
  (would work on any other port). Reboot fixed the issue

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have two USB ports that I usually use interchangeably: to port A I
  connect the mouse, to port B I connect a USB hub (to which I connect a
  keyboard, printer and other devices).

  Suddenly (probably after resuming from a suspend), the USB hub stopped working when connected to port A.
  It would work fine, however, if connected to port B. When I say the hub stopped working I mean that any device (even a keyboard) wouldn't work if connected through the hub.
  I exchanged ports dozens of times and 100% checked that:
  - mouse and keyboard would systematically work fine if connected directly to any of the ports A or B
  - the USB hub would systematically work fine only if connected to port B
  - the USB hub would systematically fail (i.e. no device connected through it would ever work) if connected to port A

   Now I've rebooted, and everything works as expected again: the USB
  hub always works fine whether I connect it to port A or B.

  I thought this was something physical until I rebooted and found out
  that everything works again.

  This is absolutely ridiculous.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-33-generic 3.8.0-33.48
  ProcVersionSignature: Ubuntu 3.8.0-33.48-generic 3.8.13.11
  Uname: Linux 3.8.0-33-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  teo        2229 F.... pulseaudio
  Date: Tue Nov 12 15:13:49 2013
  HibernationDevice: RESUME=UUID=ff7e702a-a05a-47fd-8c14-551e81f9e9e3
  InstallationDate: Installed on 2013-10-11 (31 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Acer Aspire V3-571G
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-33-generic root=UUID=5830b30e-69e8-4bb4-8a2b-bc2b43c7414a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-33-generic N/A
   linux-backports-modules-3.8.0-33-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/15/2012
  dmi.bios.vendor: Acer
  dmi.bios.version: V2.07
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: VA50_HC_CR
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.07
  dmi.modalias: dmi:bvnAcer:bvrV2.07:bd10/15/2012:svnAcer:pnAspireV3-571G:pvrV2.07:rvnAcer:rnVA50_HC_CR:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.07:
  dmi.product.name: Aspire V3-571G
  dmi.product.version: V2.07
  dmi.sys.vendor: Acer

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