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[Bug 1535470] Re: Backlight brightness keys not working


Well, the main purpose of my comment was to give some hints to Ian with
his laptop, in case it could help him, because we have some common
hardware parts...

I can fill a new bug for my case, but what do you mean by "Ubuntu repository kernel"?
Currently, I'm running the 4.6 kernel from ~kernel-ppa/mainline/, which is also (in some way) an Ubuntu repository, isn't it?
Should I switch back to the standard 4.4 kernel from main repository in order to fill my bug?

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  Backlight brightness keys not working

Status in linux package in Ubuntu:

Bug description:
  Originally described in bug 1533221. This is a new bug to track this
  additional issue separately.

  The above bug has h/w info attached etc. This is a new skylake

  Backlight function keys are not working. I have tried various
  combinations of:

  acpi_osi=Linux acpi_backlight=native
  acpi_osi=Linux acpi_backlight=vendor
  acpi_osi=! acpi_backlight=vendor
  etc, etc

  with no luck.
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
   /dev/snd/controlC0:  ian        2218 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=df036c01-8f22-4d8f-ad55-6add4f99f5f4
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 5986:066d Acer, Inc 
   Bus 001 Device 003: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 002: ID 1c7a:0603 LighTuning Technology Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Notebook P65_P67RGRERA
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-0-generic root=UUID=2077d068-d7ee-4407-89e1-7d2b884173de ro acpi_osi=Linux acpi_backlight=native drm.debug=14
  ProcVersionSignature: Ubuntu 4.4.0-0.12-generic 4.4.0
   linux-restricted-modules-4.4.0-0-generic N/A
   linux-backports-modules-4.4.0-0-generic  N/A
   linux-firmware                           1.155
  Tags:  wily
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.4.0-0-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/20/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.05.10
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: P65_P67RGRERA
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.10:bd11/20/2015:svnNotebook:pnP65_P67RGRERA:pvrNotApplicable:rvnNotebook:rnP65_P67RGRERA:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
  dmi.product.name: P65_P67RGRERA
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook

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