Hi Just for information, I did some trial and error on u-boot for the Pinebook Pro in order to have display working without hacking the kernel. See https://github.com/jsm222/ports and the twitter thread https://twitter.com/jsm22413542/status/1355896239104159748 Long story short I keep CPLL at 800000000 but set ACLK_VOP1 at 594000000.. /Jsm