On Sun, 15 Dec 2002 [EMAIL PROTECTED] wrote:

[...]
> > > 00:01.0 PCI bridge: ATI Technologies Inc U1/A3 AGP Bridge [IGP 320M]
> > > (rev 01) (prog-if 00 [Normal decode])
> > 
> > Hmm, seems to be some kind of integrated chipset? Maybe you can get
> > agpgart working with agp_try_unsupported.
> 
> I have seen an email on the "debian-laptops" list between (I suspect)
> some kernel developers referring to the "ATI IGP 320" hardware stating
> that it was currently not totally supported. (I think they said
> something like "ATI have not released the specs. yet, so the support has
> to be implemented the hard way.) My machine is an HP Pavillion ze4125
> notebook. Thus is it possible tha the chipset is an integrated one. The
> laptop manual implies it is an "integrated" chipset (for some definition
> of "integrated", which it does not specify...).
> 
> When I use "agp_try_unsupported=1" I get the same message in "kern.log":
> 
> Dec 15 12:07:17 marvin kernel: Linux agpgart interface v0.99 (c) Jeff Hartmann
> Dec 15 12:07:17 marvin kernel: agpgart: Maximum main memory to use for agp memory: 
>408M
> Dec 15 12:07:17 marvin kernel: agpgart: unsupported bridge
> Dec 15 12:07:17 marvin kernel: agpgart: no supported devices found.

As you can see, there's no agpgart support for ATI's IGP chipsets yet,
which means right now you'd probably only be able to get 2D accel (with
MMIO) at best.

> > > b) The ATI Mobility U1 is sufficiently different from the other ATI
> > > Mobility chips to cause a kernel panic on auto-detect.
> > 
> > Not sure how autodetection by 'the kernel' (do you mean the DRM?) would
> > cause a panic, you'd have to provide more information to tell.
> 
> Again, my mistake for being unclear. When the option "accel" is used,
> and I start XFree (using "startx"), I see the screen switch to tty7, but
> stay blank. After a few seconds a single short beep is emitted. Then the
> caps-lock leds flashes on and off. The system stops responding to
> keyboard input and does not respond to ssh requests, not orderly
> shutdown (but ctrl-alt-backspace or ctrl-alt-delete or a brief press on
> the power button). Hence the kernel is no longer responding. When I
> reboot and look in the XFree.log file, it ends at the point when the
> list of the supported ATI chipsets is printed and the entries where the
> driver is attempting to load the ATI driver. Thus I presume that at this
> point the ATI software is loaded which has to identify the chipset and
> this detection mechanism causes the freeze.
> 
> I have also tried a "chipid" of 0x4966 (Radeon 9000) in the
> "XF86Config-4" file with the "Option" "accel" and this suffers the same
> timeout on the FIFO error. (I read a report that the Radeon Mobility U1
> was supposed to be software-compatible with this chip.)

All the initial reviews I saw on IGP 320M said it's a Radeon VE/7000 core
(no TCL), but mention a possible new revision coming at the end of this
year or beginning of 2003.  Also the Radeon IGP pages on ATI's site just
call it a "RADEON core" and don't mention "Charisma EngineTM", which is
their name for TCL (see the Radeon 7500 page), although the features page
refers to a "broad line of chips that are pin-compatible":

http://mirror.ati.com/technology/hardware/radeonigp/features.html
http://mirror.ati.com/technology/hardware/radeonigp/rigp320m.html

You might want to try a Radeon 7000/VE or Radeon Mobility (M6?) ChipID.

-- 
Leif Delgass 
http://www.retinalburn.net




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