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[Why] DP validation may fail with multiple displays and higher color depths. The sink may support others though. [How] When DP bandwidth validation fails, progressively fallback through: - YUV422 8bpc (bandwidth efficient) - YUV422 6bpc (reduced color depth) - YUV420 (last resort) This resolves cases where displays would show no image due to insufficient DP link bandwidth for the requested RGB mode. Suggested-by: Mauri Carvalho <mcarvalho3@lenovo.com> Reviewed-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Mario Limonciello <Mario.Limonciello@amd.com> Signed-off-by: Ray Wu <ray.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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 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.