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d60cd06331
After reboot, it's not possible to use hotkeys to enter BIOS setup and boot menu on some HP laptops. BIOS folks identified the root cause is the missing _PTS call, and BIOS is expecting _PTS to do proper reset. Using S5 for reboot is default behavior under Windows, "A full shutdown (S5) occurs when a system restart is requested" [1], so let's do the same here. [1] https://docs.microsoft.com/en-us/windows/win32/power/system-power-states Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> [ rjw: Subject edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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.