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[Alexandre Strzelewicz <strzelewicz.alexandre@xxxxxxxxx>]

Ok I just tried it:

shant@onyx:~$ uname -a
Linux onyx 4.6.0-040600rc2-generic #201604031130 SMP Sun Apr 3 15:32:46 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

And the bug still exists (happened 2 times during 5/10 secs)

If I can be of any help to diagnose this bug, please let me know,

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https://bugs.launchpad.net/bugs/1566229

Title:
  XPS 13 9350 Unity freeze

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Sometime there is a freeze during 1 to 10 seconds when I use my new
  XPS13 with Ubuntu 16.04. It happens that Unity get restarted totally
  (all window disappear and appear again)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-16-generic 4.4.0-16.32 [modified: boot/vmlinuz-4.4.0-16-generic]
  ProcVersionSignature: Ubuntu 4.4.0-16.32-generic 4.4.6
  Uname: Linux 4.4.0-16-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shant      1623 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Apr  5 11:59:49 2016
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=745a5726-fc6f-4fce-b2c4-009359f51d32
  InstallationDate: Installed on 2016-04-05 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160401)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0bda:5682 Realtek Semiconductor Corp. 
   Bus 001 Device 003: ID 04f3:20d0 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-16-generic.efi.signed root=UUID=e735b0f3-ce4f-4486-82ed-ddb5b4c59d26 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-16-generic N/A
   linux-backports-modules-4.4.0-16-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 09JHRY
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn09JHRY:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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