Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ?

[Benjamin Herrenschmidt]

On Wed, 2011-04-13 at 09:59 +0200, Gabriel Paubert wrote:
> 
> Well, X is dead, or rather in an infinite ioctl loop as described
> above.
> IIRC, the display enters a power-down mode and there is nothing to
> see.

So basically the card crashed. There's about an infinite amount of
reasons why radeons do so, sometimes it has to do with them not liking
what you ate that day...

The only thing I can see that could be of use would be a bisect

Cheers,
Ben.