Odd problem with 2.4 backport of radeon driver

Michel Dänzer michel at daenzer.net
Tue Oct 21 03:26:37 EST 2003

On Mon, 2003-10-20 at 19:11, Ken Offer wrote:
> I've been trying to backport parts of the 2.6 radeon driver into the
> 2.4 radeon driver in an effort to support the 15" Powerbooks.  The chip
> in question is the Radeon Mobility 9600 (i.e. chip set 0x4e50, RV350 NP
> in the driver).
> I'm *almost* there, but I got stuck.  A large portion of the lines on
> the screen are garbled... but strangely, not ALL of them.
> Under X11, it looks like the top 20 lines are OK, and the bottom 40% of
> the screen is OK, but the rest looks like the "row bytes" are incorrect
> for those lines.  In text-console mode, all the screen is garbled
> except for the top few lines.

OF sets up a surface with tiling. The code related to
surf_{lower_bound,upper_bound,info} in drivers/video/aty/radeon_base.c
deals with this.

Earthling Michel Dänzer   \  Debian (powerpc), XFree86 and DRI developer
Software libre enthusiast  \     http://svcs.affero.net/rm.php?r=daenzer

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