On Saturday 01 July 2017 18:50:07 Jon Elson wrote:

> A guy brought me an HP elite 8300 desktop machine that he
> was having trouble getting working with a stepper controller.
> After trying a few things with no result, I put a scope on
> the parallel port.  What I see is a pulse every 33 ms on pin
> 1, which is the old parport data strobe.  I shut down all
> modules such as lp, parport, parport_pc and ppdev, and it is
> still doing it.  So, some BIOS code or kernel module seems
> to be talking to the parallel port card.  That is a PCIe
> Netmos 9900 chip, which I've used on a bunch of Dell boxes
> with no trouble.
>
> Does anybody have any idea what module might be doing this?
> (and, how to turn it off)
>
I would first look in the bios for likely suspects, but I expect you 
have, and failing that, see if there is an even newer bios for that 
board.  I've solved odd-ball stuff 3 or 4 times with a bios update.

> Thanks,
>
> Jon
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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