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Date: Wed, 11 Jun 2008 22:26:44 -0600 From: Bjorn Helgaas <bjorn.helgaas@...com> To: Malte Cornils <malte@...nils.net> Cc: linux-kernel@...r.kernel.org Subject: Re: Lenovo ThinkCentre A55: parport_pc 00:0a: disabled; probe of 00:0a failed with error -22 On Wednesday 11 June 2008 3:52:01 pm Malte Cornils wrote: > a friend of mine is unable to print on her system. I could trace that to > the kernel not finding the parallel port on the system. Windows Vista, > for whatever that's worth, prints fine. > > dmesg says: > [ 40.935843] parport_pc 00:0a: disabled > [ 40.935850] parport_pc: probe of 00:0a failed with error -22 > > rmmod parport_pc ; modprobe parport_pc io=0x378 irq=none > did not work either, the detection failed and echoing some bytes to > the /dev/lp0 device fails, too. > > Booting with noapic or pci=routeirq did not help, booting with noacpi > nolapic generated in the system grinding to a halt, which made getting > information out of it difficult due to the remote telephone debugging. There are some known PNPACPI problems that affect parport_pc. You could try booting with "pnpacpi=off", which should cause us to use PNPBIOS instead. It would be very useful if you could build a current -mm tree with CONFIG_PNP_DEBUG turned on and collect the dmesg log. That tree has the known PNPACPI problems fixed, so it *might* fix the problem you're seeing. And if not, the debug output might have more clues. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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