Quote Originally Posted by phred14 View Post
What is a "flip queue", (I can start guessing, but I'd like to see a non-guess.)
See comment #47. You basically render as fast as you can and queue up completed frames for display so there is less waiting for flips compared to double buffering. It's basically triple or more buffering.

Quote Originally Posted by phred14 View Post
and why can't it be done in X/mesa/drivers?
It can, it's just a lot of work.