drm(4) support Radeon HD 4770 (RV740)?

[Norikatsu Shigemura]

Hi rnoland.

On Thu, 09 Jul 2009 10:05:21 -0500
Robert Noland <rnoland at FreeBSD.org> wrote:
> > 	Next mission is to support r600_dri.so on graphics/dri!
> This is being worked on.  Right now, disable AIGLX in your xorg.conf.
> The newest drivers try to load r600_dri.so and AIGLX doesn't fallback
> correctly.  Please let me know, as I have approval to commit this as
> soon as you verify it is working.

	Yes, I disable AIGLX so X doesn't require r600_dri.so, but still
	broken screen.  So I disable DRI, and clear screen but not use drm:-(.

	Thank you!