Date: Fri, 23 Feb 2001 17:49:09 +0000 From: Antony T Curtis <antony@abacus.co.uk> To: Andreas Klemm <andreas@FreeBSD.ORG> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: stray irq's 7, printing hangs, about 20000-50000 irqs per second ... Message-ID: <3A96A295.37C0EA72@abacus.co.uk> References: <20010217185425.A450@titan.klemm.gtn.com> <3A90E936.BD86EA65@abacus.co.uk> <20010220085046.A5304@titan.klemm.gtn.com>
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Andreas Klemm wrote: > > Additionally I have to say that print quality also increased > by setting flag 0x8 (ECP mode). Before I seemed to have character > losses, that cause some little sparkles in my apsfilter test page. > I always thought it's due to the hpdj driver ... but now it seems > more like character losses or something like that ... > > lpr -C high:presen:cmyk test.ps > > produces now a fine high quality output. Cool. > > Would it perhaps be possible, that the ppc driver chooses > something like ECP as default so that not so many people > get problems like this ? I don't think that is a a good idea to enable ECP by default... Many people have old ISA soundcards which may be using the same DMA channel... and some ECP implementations are broken. The compat mode it uses by default will always work - but not necessarily at good performance. > Perhaps I should add this into the apsfilter FAQ or as info > into the apsfilter port.... > > ppc0: <Parallel port> at port 0x378-0x37f irq 7 flags 0x8 on isa0 > ppc0: Generic chipset (ECP-only) in ECP mode > ppc0: FIFO with 16/16/15 bytes threshold > ppbus0: IEEE1284 device found /NIBBLE/ECP > Probing for PnP devices on ppbus0: > ppbus0: <HEWLETT-PACKARD DESKJET 970C> MLC,PCL,PML > ppi0: <Parallel I/O> on ppbus0 > lpt0: <Printer> on ppbus0 > lpt0: Interrupt-driven port > > Andreas /// > > -- > Andreas Klemm - Powered by FreeBSD 4.2 SMP > Need a magic printfilter today ? -> http://www.apsfilter.org/ > > ------------------------------------------------------------------------ > Part 1.2Type: application/pgp-signature -- ANTONY T CURTIS Tel: +44 (1635) 36222 Abacus Polar Holdings Ltd Fax: +44 (1635) 38670 > "I'd love to go out with you, but I'm converting my calendar watch from > Julian to Gregorian." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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