group.of.nepali.translators team mailing list archive

[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

This patch is already in Eoan, mark this one as Fix-released.

** Also affects: linux (Ubuntu Eoan)
   Importance: Undecided
       Status: In Progress

** Also affects: linux (Ubuntu Disco)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Eoan)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1837117

Title:
  Laptop backlight is off after system boot up

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Disco:
  New
Status in linux source package in Eoan:
  Fix Released

Bug description:
  After kernel update the backlight on my Asus eeepc 1005px becomes off
  during boot up. I can see the login screen if I point light to the
  screen. The backlight is not reacting on brightness adjustment keys.
  The backlight starts working only if I close and open the laptop lid.

  I have tried to:
  * echo 10 > /sys/class/backlight/acpi_video0/brightness
  * echo 125 > /sys/class/backlight/intel_backlight/brightness
  * vbetool dpms on
  * pass "acpi_backlight=vendor" kernel parameter
  * install gdm instead of lightdm
  * create /usr/share/X11/xorg.conf.d/80-backlight.conf with content recommended in Kernel/Debugging/Backlight Wiki article
  with no luck.

  The backlight works fine if I pass "acpi_osi=" kernel parameter, the
  brightness is adjusted by keys, but the applet does not react to
  adjustments.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-145-generic 4.4.0-145.171
  ProcVersionSignature: Ubuntu 4.4.0-145.171-generic 4.4.176
  Uname: Linux 4.4.0-145-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Thu Jul 18 22:30:44 2019
  InstallationDate: Installed on 2019-02-17 (151 days ago)
  InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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