No usb on resume from suspend on Dell XPS13 9333

[Yuriy Vidineev]

My XPS13 running 14.04 always looses it's USB ports (it has only 2 USB 3.0 ports) after resume from suspend. Reconnecting USB devices doesn't help. But always help something like this:
echo -n "0000:00:14.0" | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind; echo -n "0000:00:14.0" | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind

I had the same problem with 3.13.0-46

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-31-generic 3.16.0-31.41~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-31.41~14.04.1-generic 3.16.7-ckt5
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Feb 28 23:20:45 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-03-16 (349 days ago)
InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140227)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)

[Yuriy Vidineev (adeptg)]

I think this error messages in syslog is related to usb lost:

Mar 8 00:46:45 adept-XPS13 kernel: [22645.246713] xhci_hcd 0000:00:14.0: Timeout while waiting for evaluate context command
Mar 8 00:46:45 adept-XPS13 kernel: [22645.246719] xhci_hcd 0000:00:14.0: Abort the command ring, but the xHCI is dead.

[Yuriy Vidineev (adeptg)]

Another workaround: unplug USB before waking up from suspend. I think it can be duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1291969

[Yuriy Vidineev (adeptg)]

The same issue after updating to 3.13.0-48-generic