radeon/r128 patches

[Benjamin Herrenschmidt]

On Thu, 2004-12-23 at 15:07 -0600, David Stanaway wrote:

> In Panther, the display is fine.

When you reboot in Open Firmware after going to panther, is your second
monitor set up at the full resolution or not ? Can you try with OS 9
provided you still have it around ? I want to make sure that the OF
driver properly sets up the external TMDS transmitter for the higher
frequency (r128 doesn't have an internal one, does it ?)

It would be useful also to try to "spy" the registers in MacOS, but
while I know how to do it in OS 9, I don't have the tools for that in
Panther.

> After rebooting from panther into linux, I get the same problem. It is
> fairly minor really, and is related to areas of bright color on the
> display.
> 
> For an example of what I see, check here:
> 
> http://sprocket.stanaway.net/~david/xorg/1600x1200-rain.png
> 
> The rain is highlighted with green markers.
> 
> This is with a sony CPD-E500 display. It is similar to what I was
> getting with the apple blueberry 21", although on that, the rain was
> more pronounced, and was not vertically aligned, but diagonally aligned.
> 
-- 
Benjamin Herrenschmidt <benh at kernel.crashing.org>