Use of atidump:

First call "xatitv -v" to locate the ATI Register Aperture address:

PCI card @ 0:16:0: ATI 3D Rage IIC PCI (Mach64 GV):
==> FrameBuffer @ 0xEC000000, Registers @ 0xEFFFF000
                                          ^^^^^^^^^^

... or find it in the X server output:

(--) Mach64: PCI: Mach64 Rage IIC rev 58, \
Aperture @ 0xec000000, Registers @ 0xeffff000, Block I/O @ 0xde00
                                   ^^^^^^^^^^

Then split the register aperture address in two: 0xEFFFF000
becomes 0xEFFF and 0xF000 (upper and lower half).

Then call atidump (in windows :-) with the upper and
lower halves of the register aperture address as args:

atidump 0xEFFF 0xF000

The register dump is written (appended)
to file atidump.out in current directory.


To enable I2C traffic window in ATIPLAY:

Create an ativideo.ini in C:\windows\system (if it's not there),
then put these two lines in:

[I2CBusDriver]
debug=yes

When you start ATIPLAY, an extra window
should then appear, showing the I2C traffic.

If it doesn't, it could be because your ATI
display driver and ATIPLAY application is too old.

Latest drivers can be downloaded from http://www.atitech.com/.
Remember to upgrade both the display driver and ATIPLAY.

yvind Aabling
