delay in raw print after upgrade 1.3.10 -> 1.4.6

[Franta Hanzlik]

Mike, thank for Your suggestion. CUPS logs w. debug enabled  are here:
http://www.hanzlici.cz/hentam/
I'm sorry - I forgot say one thing which maybe can affect this problem - all described printers are connected over Jetdirect (emulated on other Linux boxes).


> Enable debug logging (cupsctl --debug-logging) and then post a link to your e=
> rror_log file - that should show where the delay is.
>
> On Feb 28, 2011, at 6:39 AM, Franta Hanzlik <franta at hanzlici.cz> wrote:
>
> > We have two serial-line cash text printers and one PCL USB printer, on whi=
> ch are printing from DOS application running on Linux under DOSEMU. All prin=
> ters are in CUPS configured as "raw queue".
> > When we run on old (Fedora 9/i386 w. cups-1.3.10) configuration, data to a=
> ll printers was sent almost immediately (within cca 1 sec serial printers st=
> art print).
> > Now after upgrade to newer distro (Fedora 14/i386 w. cups-1.4.6), we notic=
> ed significant (about further 5-6 second) delay until printing start.
> > Please, is there any option which can solve this issue? Or, can someone re=
> commend any method for debugging this problem?
> >=20
> > I tried find some info, maybe http://www.cups.org/str.php?L3744 or http://=
> www.cups.org/str.php?L3495 reports can relate with, but not sure. Any sugges=
> tion for this bug?
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>