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The Acer Predator Helios series (usually denoted by PHxxx-yy) features a particular key above the keyboard named "TURBO". The turbo key does 3 things: 1. Set all fan's speeds to TURBO mode 2. Overclocks the CPU and GPU in the safe range 3. Turn on an LED just below the turbo button All the above actions are operating using WMI function calls, and there is no custom OC level for turbo. It acts as a flag for enabling turbo mode instead of telling processors to use a specific multiply of power (e.g. 1.3x of power). I've run some benchmark tests and it worked fine: GpuTest 0.7.0 http://www.geeks3d.com Module: FurMark Normal mode Score: 7289 points (FPS: 121) Turbo mode Score: 7675 points (FPS: 127) Settings: - 1920x1080 fullscreen - antialiasing: Off - duration: 60000 ms Renderer: - GeForce RTX 2060/PCIe/SSE2 - OpenGL: 4.6.0 NVIDIA 460.32.03 This feature is presented by Acer officially and should not harm hardware in any case. A challenging part of implementing this feature is that calling overclock function requires knowing the exact count of fans for CPU and GPU of each model, which to the best of my knowledge is not available in the kernel. So after checking the official PredatorSense application methods, it turned out they have provided the software the list of fans in each model. I have access to the mentioned list, and all similar PH-iii-jj can be added easily by matching "DMI_PRODUCT_NAME". Creating a specific file for the Acer gaming features is not possible because the current in use WMI event GUID is required for the turbo button and it's not possible to register multiple listeners on a single WMI event. Signed-off-by: JafarAkhondali <jafar.akhoondali@gmail.com> Link: https://lore.kernel.org/r/20210812125307.1749207-1-jafar.akhoondali@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.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.