[Bug 275993] LCD brightness become 100% when AC is unplugged when i915kms.ko is loaded.

Reply: bugzilla-noreply_a_freebsd.org: "[Bug 275993] LCD brightness become 100% when AC is unplugged when i915kms.ko is loaded."
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From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 29 Dec 2023 09:19:50 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275993

            Bug ID: 275993
           Summary: LCD brightness become 100% when AC is unplugged when
                    i915kms.ko is loaded.
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: inoue.takashi@nihon-u.ac.jp

When i915kms.ko is loaded, LCD brightness become 100% by plugging or unplugging
AC,
without changing value of backlight.
I have this issue on ThinkPad X1 Nano with Intel Tiger Lake CPU.
I don't know whether this issue occur on other laptops.

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