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JeffyCN / meta-rockchip

Yocto BSP layer for the Rockchip SOC boards
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EDID with wrong checksum problem #126

Closed chrisiberg closed 1 month ago

chrisiberg commented 2 months ago

When using an RK3588 or RK3568 in combination with a Novastar LED controller, I consistently encounter issues with the resolution settings. It appears that Novastar is generating the necessary custom EDID with an incorrect checksum (based on what I’ve been able to reproduce so far), and Rockchip then overwrites this EDID with its own, which is not suitable for the correct resolution.

Does anybody have an idea to ignore the checksum with a setting or patch?

JeffyCN commented 1 month ago

don't know much about it, maybe try to revert https://patchwork.kernel.org/project/dri-devel/patch/eb493446e5a7fd442f78078dc49d83c6e458caa0.1649322799.git.jani.nikula@intel.com/

chrisiberg commented 1 month ago

Thnx for the hint Jeffy!