PCI parallel port disabled with Wheezy / Linuxcnc 2.7

You have to change the IRQ assignment in BIOS, from auto to manual and try to set it to a free IRQ ( not easily done as most of the hardware share IRQ's ).
How? I do not know as it differs a lot across the mainboards.

There doesn't appear to be any way to do that in the BIOS.

The Oxford OXPCIe952 based cards work fine on the ECS motherboard, but its grabbing IRQ 24.

I am resurrecting this thread because its still relevant.
We were finally forced to upgrade to LinuxCNC 2.8. The A68n-2100 have been discontinued, and no of the newer mini-itx motherboards will install LinuxCNC 2.5 because of UEFI. So the motherboard we are using now is the ASRock J4005B-ITX.

So the SD-PEX10005 PCIe (MCS9900 chipset) parallel port cards that have been working flawlessly for years on the old motherboard, now show up as disabled on the new motherboard. Enabling it, it still does not show up in LinuxCNC.

Also tried removing ppdev and lp, but doing so causes both the primary port on the motherboard and the PCIe card to not show up to LinuxCNC.

Interestingly, though, the CH382L based cards that wouldn't work at all under 2.5, now work effortlessly under 2.8. While this may seem like a solution, I don't trust the supply of the CH382L based cards, and I already have a large inventory of the MCS9900 based cards.

Where to go from here?

Google found: bbs.archlinux.org/viewtopic.php?id=231821
Which is very old, but, perhaps?

And there is a hint there of something else that I found, related to entries in modprobe.d
www.linux.org/threads/solved-unable-to-f...nc-as-parport.24355/

I had actually found both of those links already. If you set enable to 1, lspci will show it as enabled then, but LinuxCNC still fails to find it.

The latter one looks interesting, but I don't understand the whole modprobe.d thing. Plus that guy was having problems with his CH382L card, which actually work flawlessy for me.

<shrug>