lpt attachment problem

[Wojciech Puchar]

when i set in BIOS my parallel port (it's IBM thinkpad T23 if it matters) 
to standard paraller port it is detected fine

ppc0: <Standard parallel printer port> port 0x3bc-0x3be irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port


when it's changed it ECP mode with dma 0, ppc attaches fine too (detects 
dma etc), ppbus attaches fine bvut lpt doesn't show up. no errors just no 
messages.

any idea?