I've got the pi running my vive pretty well, however, there doesn't seem to be much anything I can do to get the output buffer all the way to 2160 pixels. The engine I'm working with doesn't want two separate window contexts. Currently, I have to settle for 56 dead pixels on both sides of the screen.
Is there anything I can do to raise the window size from 2048 pixels to 4096 pixels?
I think this has to do with GL_MAX_TEXTURE_SIZE