http://bugzilla.kernel.org/show_bug.cgi?id=5832





------- Comment #25 from [EMAIL PROTECTED]  2007-08-13 16:29 -------
It looks like PNPACPI is getting the right information.  I scrounged
up a parallel printer and found that it does actually work with my
laptop, where PNPACPI gives an IRQ and DMA channel, so parport_pc
*can* use IRQ and DMA, at least sometimes.

Here's your log (non-working case):

  pnp: match found with the PnP device '00:09' and the driver 'parport_pc'
  parport: PnPBIOS parport detected.
  parport0: PC-style at 0x378 (0x778), irq 7, dma 3
[PCSPP,TRISTATE,COMPAT,ECP,DMA]

Does it make any difference if you try this:

  - unload parport-related modules (lp, parport, parport_pc, etc)
  # cd /sys/bus/pnp/devices/00:09/
  # echo disable > resources
  # echo clear > resources
  # echo activate > resources
  - reload parport modules

It's a long shot, but sometimes the BIOS doesn't actually configure the
device until we call _SRS, which we don't do by default.


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