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Hans de Goede 3db66620ea ACPI: video: Remove acpi_backlight=video quirk for Lenovo ThinkPad W530
Remove the acpi_backlight=video quirk for Lenovo ThinkPad W530.

This was intended to help users of the (unsupported) Nvidia binary driver,
but this has been reported to cause backlight control issues for users
who have the gfx configured in hybrid (dual-GPU) mode, so drop this.

The Nvidia binary driver should call acpi_video_register_backlight()
when necessary and this has been reported to Nvidia.

Until this is fixed Nvidia binary driver users can work around this by
passing "acpi_backlight=video" on the kernel commandline (with the latest
6.1.y or newer stable series, kernels < 6.1.y don't need this).

Fixes: a5b2781dca ("ACPI: video: Add acpi_backlight=video quirk for Lenovo ThinkPad W530")
Reported-by: Русев Путин <rockeraliexpress@gmail.com>
Link: https://lore.kernel.org/linux-acpi/CAK4BXn0ngZRmzx1bodAF8nmYj0PWdUXzPGHofRrsyZj8MBpcVA@mail.gmail.com/
Cc: 6.1+ <stable@vger.kernel.org> # 6.1+
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-05-04 20:23:41 +02:00
arch hte: Changes for v6.4-rc1 2023-05-03 11:00:27 -07:00
block Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
certs KEYS: Add missing function documentation 2023-04-24 16:15:52 +03:00
crypto modules-6.4-rc1 2023-04-27 16:36:55 -07:00
Documentation More thermal control updates for 6.4-rc1 2023-05-03 11:46:01 -07:00
drivers ACPI: video: Remove acpi_backlight=video quirk for Lenovo ThinkPad W530 2023-05-04 20:23:41 +02:00
fs afs: Avoid endless loop if file is larger than expected 2023-05-02 17:23:50 +01:00
include More thermal control updates for 6.4-rc1 2023-05-03 11:46:01 -07:00
init Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
io_uring Networking changes for 6.4. 2023-04-26 16:07:23 -07:00
ipc Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
kernel IOMMU Updates for Linux 6.4 2023-04-30 13:00:38 -07:00
lib s390 updates for the 6.4 merge window 2023-04-30 11:43:31 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm IOMMU Updates for Linux 6.4 2023-04-30 13:00:38 -07:00
net NFSD 6.4 Release Notes 2023-04-29 11:04:14 -07:00
rust Rust changes for v6.4 2023-04-30 11:20:22 -07:00
samples Rust changes for v6.4 2023-04-30 11:20:22 -07:00
scripts Kbuild updates for v6.4 2023-04-30 11:32:53 -07:00
security integrity-v6.4 2023-04-29 10:11:32 -07:00
sound Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
tools s390: 2023-05-01 12:06:20 -07:00
usr initramfs: Check negative timestamp to prevent broken cpio archive 2023-04-16 17:37:01 +09:00
virt s390: 2023-05-01 12:06:20 -07:00
.clang-format cxl for v6.4 2023-04-30 11:51:51 -07:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for *.dtso files 2023-02-26 15:28:23 +09:00
.gitignore linux-kselftest-kunit-6.4-rc1 2023-04-24 12:31:32 -07:00
.mailmap Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS pwm: Changes for v6.4-rc1 2023-05-03 11:25:01 -07:00
Makefile Kbuild updates for v6.4 2023-04-30 11:32:53 -07:00
README

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.