https://bugs.freedesktop.org/show_bug.cgi?id=37724
--- Comment #7 from Marek Olšák maraeo@gmail.com 2011-06-09 07:21:05 PDT --- (In reply to comment #6)
I don't consider Hyper-Z ready yet but thanks for testing it.
It is enabled by default now, is it by accident?
It's disabled. There are some annoying bugs and I have no clue how to fix them.