PCI parallel port disabled with Wheezy / Linuxcnc 2.7

I am running the following sequence of commands before starting LinuxCNC:
sudo /sbin/insmod /lib/modules/3.4-9-rtai-686-pae/kernel/drivers/parport/parport_pc.ko
sudo /sbin/rmmod ppdev
sudo /sbin/rmmod lp
sudo /sbin/rmmod parport_pc

What in particular should I be looking for in the dmesg output?

Anything relating to parallel port ?
Preferably from a clean boot then after loading the modules.

You may also try:
sudo modprobe parport_pc io=0xcc00

A second thing you may want to experiment with is to set change the setting in the bios, if the option is there, to a non plug and play operating system. This "should" configure the card and enable the ports. I have no idea why the previous install configured the card.

Remember to try one thing at a time, and check the output of dmesg & lspci

Thanks to everyone for the help! I am still stumped but I have not given up yet.

I may try another approach and try to upgrade to 2.7 on my 2.5 / Ubuntu Lucid partition.

Thanks again!

No joy with the above suggestions ?

Out of interest what was the demsg output after the suggestions ?

Arnief3 wrote: I am running the following sequence of commands before starting LinuxCNC:
sudo /sbin/insmod /lib/modules/3.4-9-rtai-686-pae/kernel/drivers/parport/parport_pc.ko
sudo /sbin/rmmod ppdev
sudo /sbin/rmmod lp
sudo /sbin/rmmod parport_pc

Nobody else does that

What makes you think that you need it?

Did you try the c800 address?
What error do you get when starting linuxcnc?
Why are you adding those lines before starting linuxcnc? The last line will remove parallel port driver!
Basically, install wheezy, make the config and change the parallel port address, run linuxcnc.
No terminal commands necessary.
Regards.