kern/78711: Parallel printer incredibly slow

[Suporte Matik]

On Friday 11 March 2005 19:42, Jason Bacon wrote:
> >Number:         78711
> >Category:       kern
> >Synopsis:       Parallel printer incredibly slow
> >Confidential:   no
> >Severity:       serious
> >Release:        FreeBSD 5.3-RELEASE i386
> FreeBSD sculpin.tds.net 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Sun Dec 19
> 15:26:36 CST 2004     bacon at sculpin.tds.net:/usr/obj/usr/src/sys/sculpin 
> i386
>
> >Description:
>
> 	The parallel printer runs ridiculously slow.  It prints normally
> 	for about 30 seconds, then prints one line every 5 or 10 minutes.
> 	One photo from an iBook client to a Stylus 640 took about 12 hours
> 	using lpd server to a raw printer queue.  A page from konqueror
> 	using stc_h driver with apsfilter took over an hour.
>
> >How-To-Repeat:
>
> 	Print any lengthy document to the parallel printer.
>

any two lines text file needs 15 minutes to be printed

> >Fix:
>
> 	lptcontrol -s resolves the problem.  This looks to me much
> 	like a timing issue that plagued some googlers in the late 1990s.
> 	Running in polled mode on this system does not impact the system
> 	(ASUS P5A, K6-2 500Mhz) significantly,
>

does not fix, the problem is as well with lpr and cups local/remote

the only way to get "some more speed" is using b/w and 150 dpi on a HPDJ, any 
gray or color mode is slow

> 	although it might on a faster, higher volume parallel printer.
> 	For this reason, forcing the mode to something other than COMPATIBLE
> 	via /boot/device.hints might be a better alternative for some
> 	people.  Check your BIOS to see what modes are supported for the
> 	parallel port, and "man ppc" for details on port settings in
> 	device.hints.

doesn't matter what you set in the BIOS or whatever, any gray or colormode on 
5.3 is that inacceptable slow

using the exactly same printer and port settings on 5.2.1 or 4.11 brings you 
back to the expected printing speed

you even can use the exact same clean ports tree and compiling cupsd + 
foomatic and 5.3 is slow and 5.2.1 and 4.11 is normal speed

But printing to a remote cups tree from 5.3 is giving the normal performance.


Hans


>
> >Release-Note:
> >Audit-Trail:
> >Unformatted:
>
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