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Title: Printing is slooow with kernel 2.0.35

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Printing is slooow with kernel 2.0.35

SuSE Linux: Version 5.3
Kernel: Version 2.0.35

Symptom:

Printing under a running kernel 2.0.35 is very slow: often delays of several seconds occur after a few lines of printing only.

Cause:

The kernel 2.0.35 contains a bug in the parallel port driver.

Solution:

There are several ways: please try the ensuing possibilities in this very order:

• Please use the kernel sources "lx_suse" contained in S.u.S.E. Linux 5.3. Then printing should work as usual with most printer models and interfaces.

• Try to re-insert the "lp" module from the 2.0.34 kernel. A pre-compiled version can be downloaded here: lp.o.gz (ftp://ftp.suse.com/pub/suse_update/kernel/lp.o.gz).

  Note: Please use wget to download this file. If you absolutely insist on doing it with Netscape, please take into account the information in article ke_netscape-ftp.html.

  If you want to try this module, you must first ensure that the actual "lp" module is not loaded. Check this as "root" by means of the lsmod command and unload the module in case of need:

  rmmod lp
  

  Now you can unpack and load the downloaded module. Note: please don't forget the path "./" preceding the filename:

  gunzip lp.o.gz
  insmod ./lp.o
  

  Now, try to print something. If all works well, copy the downloaded lp module into the standard modules directory:

  cp lp.o /lib/modules/2.0.35/misc/lp.o
  

• Try to modify the settings of the parallel interface. To do this, enter the BIOS Configuration menu during system startup and modify the configuration of the parallel port: normal, ECP, EPP.
• tunelp offers the options "-t" and "-w"; try to modify the timings. See the manpage of tunelp for details.

See also:

Printer : checklist

Keywords: PRINTING, PRINTER, KERNEL, SLOW, LP

Categories: Printer

Feedback welcome: Send Mail to ke@suse.de (Please give the following subject: SDB-ke_lx-lp-2.0.35)

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