On Fri, 23 Oct 2020 at 16:10, ToddAndMargo via users <users@lists.fedoraproject.org> wrote:
On 2020-10-23 05:05, Roger Heflin wrote:
> That pci-id that the underlying pci chip had (0xdead) is a magic
> number often is used to signal something being wrong.

I wonder if the card itself is bad.  It uses
a VIA chipset and VIA is kind-of-sort-of
known for being screw ups.

That would explain why the vendor's card worked but
yours failed.   It might be worth reaching out to local
CNC or Windows groups to see if someone could
check it out on a more widely used platform.
 

Anyway, I wrote the developer/maintainer of
parport_pc and offered to send both cards
to him for his testing, but have not heard
back yet.  (I have another card that floods
Core 2 after the first print.)

Like many device modules, parport_pc is full of device-specific
code contributed by outsiders, so or device support, it can be 
faster to contact someone familiar with your device: 


/* VIA 8231 support by Pavel Fedin <sonic_amiga@rambler.ru>
based on VIA 686a support code by Jeff Garzik <jgarzik@pobox.com> */
-- 
George N. White III