> When I load all these modules the printing is fast, but when I enable
> interrupt-driven operations through procfs or by specifying irq=5 when I load
> the parport_pc module, the printer performance becomes horrible. It prints
> for a few seconds, then pauses for about a minute, then resumes for a few
> seconds, etc.
Are you sure that the IRQ is 5? What is the port's base address? You
might want to see if 7 works any better.
Tim.
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