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[Why] Cursor disappears for some SLS displays that are rotated 180 and 270 degrees. This occurs when there is no pipe split being done ( ex. 3 or more displays ). The cursor calculations assume pipe splitting is done so when it calculates the new cursor position in hwss.set_cursor_position(), it is out-of-bounds so it disables the cursor in hubp.set_cursor_position(). [How] In non pipe split cases, calculate cursor using viewport size ( width or height ) instead of viewport size * 2 ( the two because pipe splitting divides the rectangle into two ). Signed-off-by: Samson Tam <Samson.Tam@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@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.