Hans de Goede bfc747fe07 ACPI: video: Add backlight=native DMI quirk for Apple iMac12,1 and iMac12,2
[ Upstream commit 8cf04bb321f036dd2e523e993897e0789bd5265c ]

Linux defaults to picking the non-working ACPI video backlight interface
on the Apple iMac12,1 and iMac12,2.

Add a DMI quirk to pick the working native radeon_bl0 interface instead.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2753
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 11:01:05 +02:00
2023-04-05 11:23:43 +02:00
2020-10-17 11:18:18 -07:00
2023-06-21 15:45:38 +02:00
2023-09-21 09:45:15 +02:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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