On Saturday, January 14, 2012 10:57:32 AM Bob von Knobloch did opine:

> I am attempting to install emc 2.4.6 on an HP Pavilion t3000 AMD PC.
> I have an existing older version, running on an older PC (it wasn't up
> to the upgrade).
> So, using the old hal & ini files, I constructed the new version, adding
> "loadrt probe_parport" to the hal file.
> But, I get no output from the parallel port.
> Hanging a 'scope on pin 7 (my z-axis step pin), I see it stuck at 'low'.
> A winblows installation that was on the PC can print via the parallel
> port OK and the parallel port test files ptest.hal & ptest.xml work fine
> (I can toggle the pins and see the scope trace move ok).
> Dmesg only reports the usual stuff:
> [   11.391926] parport_pc 00:07: reported by Plug and Play ACPI
> [   11.391973] parport0: PC-style at 0x378, irq 7 [PCSPP,EPP]
> [   11.672715] lp0: using parport0 (interrupt-driven).
> [   11.730579] ppdev: user-space parallel port driver
> I have tried removing the kernel modules, parport, & lp, with no
> success.
> 
> Anyone have any other ideas ??
> 
> Many thanks,
> 
> Bob von Knobloch

Yes, remove and blacklist the 'lp' driver, it has seized the port and 
doesn't share its toys at all well.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene>
This dungeon is owned and operated by Frobozz Magic Co., Ltd.

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