kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Anmar Oueja, in order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.

Also, you don't need to apport-collect further unless specifically
requested to do so.

Once testing of the latest upstream kernel is complete, please mark this
report Status Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags removed: bios-outdated-1.2.3
** Tags added: latest-bios-1.2.3

** Changed in: linux (Ubuntu)
   Importance: Low => Medium

** Tags added: regression-release

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1552304

Title:
  screen flicker on Dell XPS 13 9350 after kernel upgrade

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I upgraded to this version of the linux kernel (Linux xps
  4.4.0-9-generic #24-Ubuntu SMP Mon Feb 29 19:33:19 UTC 2016 x86_64
  x86_64 x86_64 GNU/Linux) and the screen now flickers ramdomly. flicker
  every few seconds for a fraction of the second. Not related to
  application install or system load.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-9-generic 4.4.0-9.24
  ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
  Uname: Linux 4.4.0-9-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  anmar      1810 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Mar  2 11:11:37 2016
  HibernationDevice: RESUME=UUID=94adb22b-7cde-416d-a17f-c3e5d40718da
  InstallationDate: Installed on 2016-03-02 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160301)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0bda:5682 Realtek Semiconductor 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-4.4.0-9-generic.efi.signed root=UUID=9945d9bf-9e44-4308-a4ec-c1f92f9b330c ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-9-generic N/A
   linux-backports-modules-4.4.0-9-generic  N/A
   linux-firmware                           1.156
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/18/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.1.9
  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.:bvr1.1.9:bd12/18/2015:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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