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IBM NetBAY  8-port KVM Switch

IBM Server 310, OpenServer 5 and Longshine 8-port...

By Cornish - usenet poster


I have installed a Longshine 8-port Card in an IBM Server 310. (SCO Unix
OS5)

The card & terminals attached work fine... However when a print job is run,
while the printer is printing the whole system becomes very slow &
sometimes hangs.

Someone has mentioned clashing IRQ's between printer ports & the Longshine
card ? Could someone give me the best way of tackling the problem ??

Regards Sean Simpson

This Problem has been added to the Share Your Expertise Page under "My Work Queue".
Solution #1
posted on Aug 11, 2005
Not Rated (0)

man1

man1 - usenet poster

Rank:Apprentice Apprentice
Rating: 0%, 0 votes
Well, what *are* the IRQs of the two devices?

Let me consult my crystal ball ... this is a parallel printer?

The kernel prints a message at boot time showing what IRQ the parallel
port is using (5 or 7).  There should be a similar message for the
Longshine card.  `hwconfig -h` should show both, and `hwconfig -hc` will
print an additional report on potential conflicts.  (Note that it is
very stupid -- it reports on all overlaps of DMA, IRQ or I/O address,
without regard for cases where such overlaps are normal.  When it says
"There may be a ... conflict" doesn't mean that there *is* a problem.
It means that it isn't smart enough to tell, and wants *you* to decide.)

Let's see... you didn't say whether this problem didn't exist before you
installed the Longshine card.  Maybe you'd never tried the printer
before that (just installed the OS, the card, the users, and noticed
this problem)?  Maybe it has nothing to do with the Longshine.  Maybe
the parallel port simply isn't set to the IRQ you told the kernel.  The
kernel message only shows what you told the kernel.  In hardware setup,
make sure the hardware matches the kernel and that the IRQ is enabled.

You didn't give a complete OS release (5.0.what?) -- this is often quite
important.

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