Intel Core2 Duo and 1394 (by 2 users)

The interface/chipset is not apparent. It shows up only as OHCI
complient and its built-in. I tried chasing down the vendor ID that
it reports, but was a dead-end.
It is based on the Intel 945PM Express chipset, its a Dell Latitude
D820. I'm assuming that the 1394 part is provided by the Intel
chipset and generic drivers.
Everything works fine even with the Presonus box if I use an add-on
1394 card. Its only a problem with the buil-in 1394 port.

I am using a very precise audio measurement/analasys software package,
and with the built-int 1394 port and the Presonus box, I get pops/
clicks and timing issues.
If I use the add-on 1394 PCCard, everything works fine.

I think that should prove that the problem isn't related to it being a
dual processor setup. I should have the same problem then even with
the add-on card. Personally, I think it is some sort of hardware
optimization made by Intel (or whoever) that Presonus's drivers can't
deal with. I mean, the built-in 1394 port is probably "tuned" for
stuff like external harddrives and video and all that burst-rate
stuff, but maybe sustained digital audio it just can't deal with.
(the combination of the Presonus drivers and the built-in hardware).

What I haven't tried yet and still intend to do is try another 1394
audio product and see how it handles things.

Jonas

I too had a Presonus device (Inspire) and the drivers were very problematic.
Traded it back in for an M-Audio...now everything is grand.

...

...

Yes. But multiprocessor systems do tend to break software that wasn't tested
on them. Practically all software has lightweight processes, ie., threads,
but that doesn't mean it was tested for race conditions on a particular
system.

Bob Morein
Dresher, PA
(215) 646-4894

I don't think the problem is specific to Core 2 Duo machines. A friend
of mine bought a Presonus Firewire audio interface and had nothing but
problems. He narrowed it down to the Presonus drivers, and returned it
and bought a cheap USB Digidesign interface with Pro-Tools LE and then
an M-Audio Firewire interface with different audio software (I don't
remember which kind) and didn't have any of those problems.

Lots of phone calls to Presonus technical support and they couldn't get
the system to work flawlessly.

On 15 Jan 2007 20:09:12 -0800, trained 100 monkeys
to jump on the keyboard and write:

Two Questions :

What interface are you trying to use with the Firewire?

What controller chip is in your Firewire setup?

There are several Firewire controller chips, some more highly
suggested than others (like the Texas Instruments, for instance).

--
jtougas

"listen- there's a hell of a good universe next door
let's go" - e.e. cummings