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When using a panel with a fixed mode we don't change the refresh rate of the display. Reject any user requested mode which doesn't match that fixed refresh rate. Unfortunately when Xorg sees the scaling_mode property on the connecor it likes to automagically cook up modes whose refresh rate is a fair bit off from the fixed refresh rate we use. So we have to give it some extra latitude so that we don't start to reject all of it. v2: sDVO now uses intel_panel_compute_config() too v3: Add a debug message to inform the user what happened References: https://gitlab.freedesktop.org/drm/intel/-/issues/2939 References: https://gitlab.freedesktop.org/drm/intel/-/issues/3969 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210929184536.8332-1-ville.syrjala@linux.intel.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.