Bug#362755: xorg: not setting MTRR range register for framebuffer to write-combining

[Daniel Stone <daniels@debian.org>]

On Sat, Apr 15, 2006 at 12:32:59PM +0200, Zlatko Calusic wrote:
> Starting with Xorg 7.0, X server is not setting MTRR range register
> for framebuffer to write-combining which means that display output is
> twice slower than before (or using twice as much CPU, depending on the
> view). Everything worked correctly up to and including 6.9. Setting it
> manually works but it would be nice to fix it so that X server takes
> care of it automatically once again. There is no interesting output in
> Xorg.0.log, it's just that line that was present before and reporting
> that range is set to write-combining is now missing.

XSF:
http://webcvs.freedesktop.org/xorg/xserver/xorg/configure.ac?r1=1.186&r2=1.187