Radeon M7 rendering problem for SXGA+

John Klingler john at jupiter.com
Thu Oct 19 09:54:09 PDT 2006


Rounding 1400 up to the next multiple of 64 results in 1408. Setting 
CRTC_PITCH
to 1408 results in a screen width of 1408. If you tell the X Server that 
the screen width
is 1408, everything works fine, otherwise the whole screen is messed up. 
The objective
is to have a screen width of 1400 and have the graphics engine draw 
correctly.

Thanks for trying to help.

John

Benjamin Herrenschmidt wrote:

>Well, you need to say both the scanout pich and the engine pitch to the
>same value that is a multiple of 64. The former is in CRTC_PITCH and is
>basically your virtual yres.
>
>Ben.
>
>
>  
>



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