Mailinglist Archive: opensuse (4547 mails)

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Re: [SLE] my second serial port has vanished ;-(
  • From: Constant Brouerius van Nidek <constant@xxxxxxxxxxx>
  • Date: Sun, 23 May 2004 21:55:19 +0700
  • Message-id: <200405232155.19545.constant@xxxxxxxxxxx>
On Sunday 23 May 2004 16:28, Marshall Heartley wrote:
> <snip>
>
> > Yes and in the software setup it was setup at irq 5. Got a new TV
> > card whichput itself on irq 5, shoving my NIC card to irq 3.
>
> Ahhh OK.
>
> > The only irq where the software setup did not complain as being
> > used by something else was irq 15. Using that irq caused a lockup
> > at boot. I gave the TV card irq 9 in the BIOS and have now a
> > working com port again.
>
> The reason that using IRQ 15 caused a lockup is that 15 is used for
> the second IDE channel on the motherboard.
>
> > Although my motherboard is outfitted with two ISA slots 4 PCI and
> > one AGP, space problems does not make that possible.
>
> Understood.
>
> > There is no PNP OS YES/NO in my BIOS but I had not set the PCI
> > cards a specific irq which is more or less the same
>
> Weird? What make is this motherboard? Usually there is some sort
> of setting like the one described. Oh well.
>
It is a board from Itox. Taiwan with an (upgraded) Award bios.
I put the irq 9 for the TV card and everything is running well.
There is still a program that does not want to contact this port but
that is a software case or a cable case ;-).
> > > Stupid IRQs! 2004 and IRQs are still around and a pure PITA!
> >
> > The question that arises, I remember vaguely that irq 9 is used
> > to connect to the irq from 10 and higher. Would the choice of irq
> > 9 have consequences? And I am still missing one or two com ports
> > for the things that I am planning to do. Aren't there USB to
> > comports adapters which could solve that problem? For the time
> > being I can proceed ;-). Everyone, thanks for your help.
>
> IRQ 9 is tied to IRQ 2 (which is hidden). If you are still missing
> the port, then I am not sure what all you can do. You will need to
> be sure that you have a IRQ set aside for that com port.
>
> I am not sure about USB to com port adapters. I unfortunately have
> not had a situation where I have had to see about using such a
> thing.
>
> If IRQ 9 is free, then you should be able to use it.
>
> Well let me think what all else we can try to get this to work.
>
It works ;-)

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