group.of.nepali.translators team mailing list archive

[Sebastien Bacher <seb128@xxxxxxxxxx>]

** Changed in: unity-settings-daemon (Ubuntu Zesty)
       Status: Triaged => Won't Fix

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https://bugs.launchpad.net/bugs/1683445

Title:
  E6430 brightness control not working

Status in GNOME Settings Daemon:
  Fix Released
Status in Nouveau Xorg driver:
  Won't Fix
Status in OEM Priority Project:
  Confirmed
Status in gnome-settings-daemon package in Ubuntu:
  Fix Released
Status in unity-settings-daemon package in Ubuntu:
  Fix Released
Status in gnome-settings-daemon source package in Xenial:
  Confirmed
Status in unity-settings-daemon source package in Xenial:
  Confirmed
Status in gnome-settings-daemon source package in Zesty:
  Fix Released
Status in unity-settings-daemon source package in Zesty:
  Won't Fix

Bug description:
  Impact
  ------
  It looks like GNOME's brightness control simply used the first backlight device it saw instead of one currently in use. This meant that the brightness control would not work on some computers with multiple GPUs.

  Test Case
  ---------
  From Ubuntu GNOME 17.04 on a dual-GPU computer, install the update.
  Restart.
  Does the brightness control now work correctly?

  Regression Potential
  --------------------
  This looks like a minimal fix for this issue. It was accepted as part of gnome-settings-daemon 3.24.2 which all GNOME 3.24 distros  will be upgrading to.

  Original Bug Report
  -------------------
  The Dell E6430 with Nvidia Optimus enables in BIOS, using the Open Source Nouveau driver shows the brightness slider moving but does not affect the brightness.

  When using the kernel boot option acpi_backlight=vendor , the
  brightness control works.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-19-generic 4.10.0-19.21
  ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
  Uname: Linux 4.10.0-19-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     2081 F.... pulseaudio
  CurrentDesktop: Unity:Unity7
  Date: Mon Apr 17 20:00:56 2017
  HibernationDevice: RESUME=UUID=66528b53-0f42-4043-9ff8-da8f86036be6
  InstallationDate: Installed on 2017-04-10 (7 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Beta amd64 (20170321)
  MachineType: Dell Inc. Latitude E6430
  ProcFB:
   0 nouveaufb
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-19-generic.efi.signed root=UUID=4e08c33d-f8cf-4159-a559-a0463d67b96c ro quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-19-generic N/A
   linux-backports-modules-4.10.0-19-generic  N/A
   linux-firmware                             1.164
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/18/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A18
  dmi.board.name: 0H3MT5
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA18:bd01/18/2016:svnDellInc.:pnLatitudeE6430:pvr01:rvnDellInc.:rn0H3MT5:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6430
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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