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[Bug 1568599] Re: Screen flickering with 16.04 on Dell XPS13 9350


Hi Christopher

I have already upgraded to 1.3.3 a couple of weeks ago. The flickering
seems to be very intermittent. It's not doing it today!

plattr@beatrice:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
[sudo] password for plattr: 

2) Its definitely a lot better than when I first installed 16.04 Alpha
with the old BIOS. I will continue to monitor to see if the flickering

3) Set to Confirmed,

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

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  Screen flickering with 16.04 on Dell XPS13 9350

Status in linux package in Ubuntu:

Bug description:
  I have installed Ubuntu 16.04 on my XPS13 9350 and I am experiencing
  and intermittent screen flickering. The screen goes black for a brief
  moment and constantly does this. While I have been typing it has done
  it 20-30  times.

  plattr@beatrice:~$ uname -a
  Linux beatrice 4.4.0-18-generic #34-Ubuntu SMP Wed Apr 6 14:01:02 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

  plattr@beatrice:~$ sudo dmidecode | grep -A3 '^System Information'
  [sudo] password for plattr: 
  System Information
  	Manufacturer: Dell Inc.
  	Product Name: XPS 13 9350
  	Version: Not Specified

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC0:  plattr     1194 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Apr 10 21:07:48 2016
  HibernationDevice: RESUME=UUID=84cb2e32-5b42-44ab-be61-5906241daa1e
  InstallationDate: Installed on 2016-03-28 (12 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   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-4.4.0-18-generic.efi.signed root=UUID=ddbb6ae6-9a35-4877-beba-6edd31e0ab97 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-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: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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