two aty128 frame buffers?
Jeffery von Ronne
jronne at ics.uci.edu
Fri Feb 8 06:55:59 EST 2002
On Mon, Feb 04, 2002 at 03:46:26PM -0800, Jeffery von Ronne wrote:
> Does anyone know how hard it would be to hack aty128fb to support a
> second Rage 128? Or am I better off trying to get the X server to talk
> directly to the second card?
FYI, hacking the kernel's aty128fb driver---by removing the return 0;
in aty128fb_init's PCI probe loop---I can get an aty128fb for both cards.
So far, I've only gotten X's fbdev driver to work with it. I looks closer
into why r128/UseFB isn't working some other time.
Unfortunately /dev/fb1 (which is the one open firmware uses, BTW) has a couple
First, it only seems to work in 8bpp: in other modes the screen splits
into three parts: a top-left, top-right, and bottom. The bottom just
has garbage, and the top-left and top-right seem to be mirrored
minature of a garbaged version what the screen is supposed to contain.
Second, it seems to have trouble erasing things (e.g. instead of putting
up the X background grid when I move a window or even initially.)
Jeffery von Ronne <jronne at ics.uci.edu>
Information and Computer Science
University of California, Irvine
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