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[Why] There is a scenario that causes eDP to become blank if there are multiple displays connected, and the external display is set as the primary display such that the first flip comes to the external display. In this scenario, we call our optimize function before the eDP even has a chance to flip. [How] There is a check that prevents bandwidth optimize from occurring before first flip is complete on the seamless boot display. But actually it assumed the seamless boot display is the first one to flip. But in this scenario it is not. Modify the check to ensure the steam with the seamless boot flag set is the one that has completed the first flip. Signed-off-by: Anthony Koo <anthony.koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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 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.