I'll have to do some reading this week and give it a go. Thanks for the reply and info.
**UPDATE! (read it in Robert Stacks voice) Well I've been reading and on the kernel build page there is a lot of discussion about H3 boards being largely unsupported if almost not at all with 4x kernels. Sifting through fex and patch pages this looks like far too large a time sink than I can deal with for changing resolution. Plus the OP's link to the u-boot file referenced is 404. Maybe over the next few months I'll slowly chip away at things but there seem to be too many problems and specifics for me to wade through. Though I'm not ruling out that the kernel build discussions have given me a possibly over complicated view of things but it's been 15 or so years since I did anything like this and back then it was building BSD kernels for speed of purpose. Comically these tiny dev boards remind me of those days because compiling anything takes days! heh.