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[Yuriy Vidineev <1291969@xxxxxxxxxxxxxxxxxx>]

Dell XPS 13 9333. Tested linux-image-4.1.0-040100rc2-generic. The same
issue. Interesting in syslog:

May  7 16:18:29 adept-XPS13 kernel: [  177.255581] hub 2-1:1.0: hub_port_status failed (err = -71)
May  7 16:18:29 adept-XPS13 kernel: [  180.034509] dell_wmi: Unknown key e00e pressed
May  7 16:18:29 adept-XPS13 kernel: [  182.256180] hub 2-1:1.0: hub_port_status failed (err = -110)
May  7 16:18:29 adept-XPS13 kernel: [  198.285350] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
May  7 16:18:29 adept-XPS13 kernel: [  198.285352] xhci_hcd 0000:00:14.0: Assuming host is dying, halting host.
May  7 16:18:29 adept-XPS13 kernel: [  198.285377] xhci_hcd 0000:00:14.0: HC died; cleaning up
May  7 16:18:29 adept-XPS13 kernel: [  198.285403] dpm_run_callback(): usb_dev_resume+0x0/0x20 returns -22
May  7 16:18:29 adept-XPS13 kernel: [  198.285422] PM: Device 2-1.3 failed to resume async: error -22
May  7 16:18:29 adept-XPS13 kernel: [  198.285484] PM: resume of devices complete after 22081.908 msecs
May  7 16:18:29 adept-XPS13 kernel: [  198.285784] PM: Finishing wakeup.
May  7 16:18:29 adept-XPS13 kernel: [  198.285786] Restarting tasks ... 
May  7 16:18:29 adept-XPS13 kernel: [  198.285827] usb 2-1: USB disconnect, device number 2
May  7 16:18:29 adept-XPS13 kernel: [  198.285845] usb 2-1.3: USB disconnect, device number 3
May  7 16:18:29 adept-XPS13 kernel: [  198.286237] pci_bus 0000:01: Allocating resources
May  7 16:18:29 adept-XPS13 kernel: [  198.286256] pci_bus 0000:02: Allocating resources
May  7 16:18:29 adept-XPS13 kernel: [  198.286281] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
May  7 16:18:29 adept-XPS13 kernel: [  198.286648] pci_bus 0000:01: Allocating resources
May  7 16:18:29 adept-XPS13 kernel: [  198.286666] pci_bus 0000:02: Allocating resources
May  7 16:18:29 adept-XPS13 kernel: [  198.286691] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment

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https://bugs.launchpad.net/bugs/1291969

Title:
  No usb on resume from suspend

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  My XPS13 running 14.04 sometimes loses its USB ports after resume from
  suspend. When this happens the entire bus seems dead - both external
  ports do not work, and internal USB devices (webcam, touchscreen) are
  also non-functional. Furthermore lsusb shows no devices attached.
  Rebooting or performing another suspend/resume cycle will clear the
  problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-17-generic 3.13.0-17.37
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  steve      2868 F.... pulseaudio
   /dev/snd/controlC0:  steve      2868 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Mar 13 08:36:46 2014
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-precise-amd64-20130203-1
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=79084358-087f-4cee-a0be-e2f78361873f
  InstallationDate: Installed on 2013-12-02 (100 days ago)
  InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50
  Lsusb:
   Bus 001 Device 002: ID 8087:8000 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS13 9333
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic root=UUID=0b9db31c-747b-40ad-bbbd-13a9a29caece ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-17-generic N/A
   linux-backports-modules-3.13.0-17-generic  N/A
   linux-firmware                             1.126
  RfKill:
   1: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-02-12 (28 days ago)
  dmi.bios.date: 11/11/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A01
  dmi.board.name: 0GFTRT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA01:bd11/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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