On Wed, Nov 01, 2006 at 10:49:36AM -0500, Lowell Gilbert wrote: > * Change the printer port to polled mode. ["lptcontrol -p"] > With this kind of hardware, it may even speed up your printing as well.
Thanks a lot, I think it does print a bit faster. But more importantly I see virtually no performance degradation during printing. Perhaps a sentence on this should be added in section 184.108.40.206 (Setting the Communication Mode for the Parallel Port) of the user manual somewhere in the end of this pararaph: The interrupt-driven method is usually somewhat faster but uses up a precious IRQ line. Some newer HP printers are claimed not to work correctly in interrupt mode, apparently due to some (not yet exactly understood) timing problem. These printers need polled mode. You should use whichever one works. Some printers will work in both modes, but are painfully slow in interrupt mode. and then add something like: On slower machines using interrupt mode might cause significant degradation of the overall system perfor- mance due to the interrupt service using most of the CPU time. On such machines changing to polled mode will balance the CPU load as well as result in faster printing. Perhaps I should send a message to the documentation list? anton _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"