hello,
i'm trying to get an hp laserjet 6l configured thru Yast. I'm using OpenSuse 10.1.It does not see the printer on auto detect. when i try to add printer it says no devices found on /dev/lp?. I looked in directory /dev and i dont see an entry for lp0.i did a dmesg out of curiosity and it is detected on bootup:
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
parport0: Printer, Hewlett-Packard HP LaserJet 6L
lp0: using parport0 (interrupt-driven).
but when i looked in messsages file see:
Aug 15 14:40:12 **** kernel: pnp: Device 00:07 disabled.
Aug 15 14:40:12 **** kernel: parport 0x378 (WARNING): CTR: wrote 0x0c, read 0xff
Aug 15 14:40:12 **** kernel: parport 0x378 (WARNING): DATA: wrote 0xaa, read 0xff
Aug 15 14:40:12 **** kernel: parport 0x378: You gave this address, but there is probably no parallel port there!
Aug 15 14:40:12**** kernel: parport0: PC-style at 0x378 [PCSPP,TRISTATE]
Aug 15 14:40:12 **** kernel: pnp: Device 00:07 activated.
Aug 15 14:40:12 **** kernel: parport: PnPBIOS parport detected.
Aug 15 14:40:12 **** kernel: pnp: Device 00:07 disabled.
Aug 15 14:40:12 **** kernel: lp: driver loaded but no devices found

looks like it becomes activated then disabled.I was doing some research and it seems udev is responsible for setting this up in Suse. My pertinent lines from /etc/udev/rules.d are :
# printer
SUBSYSTEM=="usb", KERNEL=="lp*", NAME="usb/%k", SYMLINK+="usb%k", GROUP="lp"
SUBSYSTEM=="printer", KERNEL=="lp*", NAME="%k", GROUP="lp"
KERNEL=="irlpt*", NAME="%k", GROUP="lp"

any suggestions on how to get this working would be appreciated...

A few questions: did that printer using the same cable work in other
conditions? Is the machine you're trying to use it on now new? What
does BIOS say about interrupt sharing and the printer modes?



Cheers,
Tink

thanx for the reply. i found the solution. The Bios was set for EPP/ECP on the parallel port. After changing the option to Output Only (which also deleted DMA on the port automatically) the printer was recognized fine. For my own education I just want to find out difference between modes in case I run into this problem again....