[Dell Precision T7600] plugged USB storage would drop after resume from suspend

[Po-Hsu Lin]

CID: 201109-9790 Dell Precision T7600

If suspend with an USB thumb drive, it will drop after resume, but it could work if you unplug and plug it to the systme again.

Steps:
1. Install 12.04.5, boot to desktop, insert two USB thumb drives in USB 2.0/3.0 port
2. Suspend, then wake it up
3. Check if the USB thumb driver still mounted and still working

Expected result:
* USB thumb drive works fine

Actual result:
* One usb will drop right after the system resumed from suspend, a few seconds later, another one will drop too.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57~precise1 [modified: boot/vmlinuz-3.13.0-32-generic]
ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Wed Aug 13 23:36:00 2014
InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-lts-trusty
UpgradeStatus: No upgrade log present (probably fresh install)

[penalvch (penalvch)]

Po-Hsu Lin, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1356722

[Po-Hsu Lin (cypressyew)]

Verified again with 12.04.5 on 201109-9790 with the latest kernel, 3.13.0-74
This issue cannot be reproduced anymore, tested with all 10 USB ports.