27/4k extened monitor hdmi Resolution problem, just 1920 × 2160?

laptop: t480, i7-8550U

openCore: 0.8.2

video output: hdmi to hdmi

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overview

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opencore deviceProperties

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Resolution issue

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RDM scale

the high 0.5???

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DisplayProductID-* file

Did:

- get VID and more info from `Hackintool`

- add extened monitor Display plist to `/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-*/DisplayProductID-*`

after these done, this Resolution problem still exists! someone can help? thx