Originally Posted by AaronP
Yes, we proposed an extension to solve this problem at the last X Developers' Conference. However, it's a lot of work and so far it hasn't gained much traction.
This seems like a pretty serious shortcoming that will only get worse as time goes on and more and more distros add compositing window managers as the default. Obviously, the Composite extension can simply be disabled, but there remains the issue that people want to have it on for the simple fact that they like what it provides.
Can you provide any further details about this mysterious extension? What does it do, or how does it work?