Messages in this thread | | | Date | 26 Jan 99 14:59:33 -0800 | From | "Alex Adriaanse" <> | Subject | Horrible parport performance when IRQ enabled |
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I just upgraded to the 2.2.0 kernel, and the speed at which the data is transferred to my printer is horrible when I print through /dev/lp0. I have a standard PC parallel port, and I compiled parport, parport_pc and lp as modules.
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.
For as far as I know there are no other devices that could possibly conflict with my parallel port. Is this a bug in the parport driver or am I doing something wrong here? Note that my printer used to work fine under 2.0.33-36
Best regards,
Alex Adriaanse
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