I have 2 Pis, a original B+ and a 3. The B+ was used every day as a desktop PC for 4 years with overclocking, so it is pretty worn.So now I use the 3 as a desktop and try to run DOS games in DOSbox on the B+ when I get bored.
I was thinking, is it theoreticaly possibly to hook up my B+ to my 3 and run a script on, say, Raspbian Lite, that would make the B+'s GPU acessable to the GPU of the 3, as some sort of ghetto dual core GPU and pipe all the monitor output of the B+?
Or better yet, is it also possible to hijack all of the GPU and the CPU on the B+ and use it all as a GPU?
If any of this is possable, are there any programs,scripts, or anything avaliable? I am open to any suggestions. Adafruit's SeeSaw, anyone?