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7df7b728c3
On systems with multiple GPUs there can be uncertainty which GPU is the primary one used to drive the display at bootup. In some desktop environments this can lead to increased power consumption because secondary GPUs may be used for rendering and never go to a low power state. In order to disambiguate this add a new sysfs attribute 'boot_display' that uses the output of video_is_primary_device() to populate whether the PCI device was used for driving the display. Suggested-by: Manivannan Sadhasivam <mani@kernel.org> Acked-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://gitlab.freedesktop.org/xorg/lib/libpciaccess/-/issues/23 Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20250811162606.587759-5-superm1@kernel.org Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> |
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| 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 reStructuredText 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.