Make an xorg.conf file in /storage/.config/ with this content :CodeSection "Device" Identifier "Device0" Driver "intel" VendorName "INTEL Corporation" Option "TripleBuffer" "false" Option "TearFree" "false" Option "DRI" "3" EndSection
TripleBuffer and TearFree options settings are up to you. Better having them set to false for Kodi.
DRI3 caused a problem during screen resolution change to 2160p.
Kodi menu smooth, resolution change solved with this config: