[Bug 207086] unable to change LCD brightness on Lenovo Thinkpad Edge E145

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207086

--- Comment #6 from commit-hook at freebsd.org ---
A commit references this bug:

Author: avg
Date: Tue May  5 12:14:12 UTC 2020
New revision: 360657
URL: https://svnweb.freebsd.org/changeset/base/360657

Log:
  acpi_video: try our best to work on systems without non-essential methods

  Only _BCL and _BCM methods seem to be essential to the driver's
  operation.  If _BQC is missing then we can assume that the current
  brightness is whatever we set by the last _BCM invocation.  If _DCS or
  _DGS is missing the we can make assumptions as well.

  The change is based on a patch suggested by Anthony Jenkins
  <Scoobi_doo at yahoo.com> in PR 207086.

  PR:           207086
  Submitted by: Anthony Jenkins <Scoobi_doo at yahoo.com (earlier version)
  Reviewed by:  manu
  MFC after:    3 weeks
  Differential Revision: https://reviews.freebsd.org/D24653

Changes:
  head/sys/dev/acpica/acpi_video.c

-- 
You are receiving this mail because:
You are on the CC list for the bug.