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Prefer the timing formula indicated by the range descriptor for generating the non-DMT standard timings. Previously we just used CVT for all EDID 1.4 continuous frequency displays without even checking if the range descriptor indicates otherwise. Now we check the range descriptor first, and fall back to CVT if nothing else was indicated. EDID 1.4 more or less deprecates GTF/GTF2 but there are still a lot of 1.4 EDIDs out there that don't advertise CVT support, so seems safer to use the formula the EDID actually reports as supported. For EDID 1.3 we use GTF2 if indicated (as before), and for EDID 1.2+ we now just use GTF without even checking the feature flag. There seem to be quite a few EDIDs out there that don't set the GTF feature flag but still include a GTF range descriptor and non-DMT standard timings. This to me seems to be roughly what appendix B of EDID 1.4 suggests should be done. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220927170006.27855-7-ville.syrjala@linux.intel.com |
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| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| samples | ||
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| sound | ||
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
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| Kbuild | ||
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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 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.