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[Bug 1577364] Re: Screen flickers after upgrade to 16.04 from 15.10 on Dell XPS13 9350

 

Thanks Joseph.

Yes the issue starts happening after I upgrade from 15.10 to 16.04. It
was fine in 15.10, and if I remembered it correctly, the kernel number
was 4.3.

I tested on the upstream kernel and the issue is fixed in v4.6-rc6.

Cheers

** Tags added: kernel-fixed-upstream

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

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https://bugs.launchpad.net/bugs/1577364

Title:
  Screen flickers after upgrade to 16.04 from 15.10 on Dell XPS13  9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Screen flickers after upgrade to 16.04 from 15.10 on Dell XPS13  9350.

  Flickers frequently on mid-range brightness, better on high and low
  range brightness.

  Tried to turn off tlp but doesn't help

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  seanl      1895 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon May  2 21:27:58 2016
  HibernationDevice: RESUME=UUID=8c16e7e0-1b67-4bf7-b502-25e5d6de6d81
  InstallationDate: Installed on 2015-12-16 (138 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0c45:670c Microdia 
   Bus 001 Device 003: 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-4.4.0-21-generic.efi.signed root=UUID=0d974029-002f-443f-b682-4209064663d0 ro acpi_sleep=nonvs quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (9 days ago)
  dmi.bios.date: 11/27/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.1.7
  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.:bvr1.1.7:bd11/27/2015:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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