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[ Upstream commit 574160b8548deff8b80b174f03201e94ab8431e2 ] Toshiba Satellite Z830 needs the quirk video_disable_backlight_sysfs_if for proper backlight control after suspend/resume cycles. Toshiba Portege Z830 is simply the same laptop rebranded for certain markets (I looked through the manual to other language sections to confirm this) and thus also needs this quirk. Thanks to Hans de Goede for suggesting this fix. Link: https://www.spinics.net/lists/platform-driver-x86/msg34394.html Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Arvid Norlander <lkml@vorpal.se> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Arvid Norlander <lkml@vorpal.se> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.