Не видится принтер:
hp LJ 4L
OpenSUSE 10.3
мать ASUS P4B266C

zcat /proc/config.gz | grep PRINTER
CONFIG_PRINTER=m
CONFIG_USB_PRINTER=m

modinfo lp parport
filename:       /lib/modules/2.6.22.17-0.1-default/kernel/drivers/char/lp.ko
license:        GPL
alias:          char-major-6-*
srcversion:     127E4D31102563908535240
depends:        parport
supported:      yes
vermagic:       2.6.22.17-0.1-default SMP mod_unload 586
parm:           parport:array of charp
parm:           reset:bool
filename:       /lib/modules/2.6.22.17-0.1-default/kernel/drivers/parport/parport.ko
license:        GPL
srcversion:     33B74C42F0CFD5F61FDFD49
depends:
supported:      yes
vermagic:       2.6.22.17-0.1-default SMP mod_unload 586

parport0: PC-style at 0x378 [PCSPP,TRISTATE,EPP]
parport0: Legacy device
parport 0x17a (WARNING): CTR: wrote 0x0c, read 0xff
parport 0x17a (WARNING): DATA: wrote 0xaa, read 0xff
parport 0x17a: You gave this address, but there is probably no parallel port there!
parport0: PC-style at 0x17a, irq -542560520 [PCSPP,TRISTATE]
parport0: irq -542560520 in use, resorting to polled operation
lp0: using parport0 (polling).
parport0: PC-style at 0x378 [PCSPP,TRISTATE,EPP]
parport0: Legacy device
parport 0x17a (WARNING): CTR: wrote 0x0c, read 0xff
parport 0x17a (WARNING): DATA: wrote 0xaa, read 0xff
parport 0x17a: You gave this address, but there is probably no parallel port there!
parport0: PC-style at 0x17a, irq -542560520 [PCSPP,TRISTATE]
parport0: irq -542560520 in use, resorting to polled operation
lp0: using parport0 (polling).

dmesg | grep lp0
lp0: using parport0 (polling).
lp0: using parport0 (polling).
lp0: using parport0 (polling).
lp0: using parport1 (polling).

В установленной на той же машине WinXP - все ок, раньше там же стоял debian - проблем не возникало, все работало сразу после установки.
cat чего-нибудь > /dev/lp0 - молчит как партизан.
Установка принудительно через YAST и CUPS - молчит, ни ошибок, ни печати :)
Перебирал в BIOS варианты режима порта - без изменений.