Remember to mark solved
So this is [solved]?
You can also try 'glamor' if you want to be sure that the acceleration method is not the problem.
I remember reading something about getting xwinwrap to play nice with multiple monitors. Is that what you're trying to do? Or is it for switching workspaces on the same monitor?
Putting it in your rc.local?
The link to your screenshot seems dead. Have you tried changing your GTK theme?
Have you tried setting the environment variable vblank_mode=0 or vblank_mode=1 before running a GL app?
So this is "solved" right?
Sure. Do you mean likexrandr --output DVI-0 --mode 1280x1024?