Having some parallel port issues (ok, stop laughing!). Can some people with parallel ports on their mobos (real ones, not usb-based ones) send me the output of:
tail -c+1 /proc/sys/dev/parport/parport0/{autoprobe,base-addr,dma,irq,modes}
I'm especially interested to see what you get if you have ECP mode set in the BIOS.
Also: dmesg |grep parport or grep parport /var/log/messages
My 2008 motherboard refuses to let linux use ECP, even though the BIOS says ECP. EPP seems to work, but doesn't give me a DMA. Other boards I've checked use EPP and DMA.
Without DMA, cups printing uses I/O polling and is ***SLOW*** and uses 100% cpu for 30s per page. Ouch.
To the zero people who are interested in the bugzilla, here's a link: https://bugzilla.redhat.com/show_bug.cgi?id=1180396