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[Bug 1531218] Re: Laptop Display flickers like 50Hz CRT monitor

 

kai gallmeister, you will find an even faster resolution if the bug was
bisected first before upstreaming.

Hence, could you please advise what issue you found while bisecting
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

** Tags added: latest-bios-204 needs-bisect regression-release

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

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Title:
  Laptop Display flickers like 50Hz CRT monitor

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Starting with kernel version 4.1, the display of may laptop started to
  flicker like an old-fashioned 50Hz CRT monitor.

  My computer is an ASUS Zenbook UX303LA-R0280H (Intel i5-4210, HD 4400,
  1366x768) running Kubuntu 15.10.

  I installed multiple mainline kernels. The problem is not present with
  3.19 and 4.0, but occurs with 4.1 and is still present with 4.2, 4.3
  and 4.4. (A kernel git-bisect did not work.)

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-22-generic 4.2.0-22.27
  ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
  Uname: Linux 4.2.0-22-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gallmei    2179 F.... pulseaudio
   /dev/snd/controlC1:  gallmei    2179 F.... pulseaudio
  Date: Tue Jan  5 18:07:40 2016
  InstallationDate: Installed on 2015-02-13 (325 days ago)
  InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 064e:9700 Suyin Corp. Asus Integrated Webcam
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX303LA
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
   LC_NUMERIC=C
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic.efi.signed root=UUID=b3101f2d-7797-4f15-a1ee-eec2c6d92822 ro quiet splash acpi_osi= vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-22-generic N/A
   linux-backports-modules-4.2.0-22-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-31 (65 days ago)
  dmi.bios.date: 09/01/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX303LA.204
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX303LA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX303LA.204:bd09/01/2014:svnASUSTeKCOMPUTERINC.:pnUX303LA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX303LA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX303LA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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