Hi,
Seeming as I just posted a question to list, I thought I would try and help.
I am assuming that you are using an internal modem.
TRY THIS FIRST:
If that is the case, you likely have an IRQ conflict. You need to go into
your BIOS (hit DEL at boot up on most machines). Look for an entry called
integrated peripherals (or something like that... BIOS screens unfortunately
vary a lot.) You should hopefully find an entry for SERIAL ports on your
computer. DISABLE both motherboard serial ports. (WARNING: I am assuming
you are using a PS/2 mouse... or you could lose your mouse doing this.)
Then save the BIOS changes and reboot.
Watch the boot up screen and see if your computer sees any serial ports at
boot up. If it does, then your modem should be working just fine now. You
can then go back to the BIOS setting and turn back up ONE of your onboard
serial ports. Make sure the serial port DOES NOT use the same I/O and IRQ
as the internal modem. (Fortunately, you can tell what I/O the internal
modem is using on the boot up information screen.)
TRY THIS SECOND:
This will require you to look at your internal modem and see how the jumpers
are configured. You want to set your modem to COM1 or COM2 and to use IRQ3
or IRQ4. Do not use any other IRQs as then often conflict with devices on
the computer. (If it set to IRQ5 it is likely conflicting with your sound
card or printer card.) Then go through the steps outlined in "TRY THIS
FIRST" and see if you can get your modem working.
Just for some background, you can not have more than 2 serial ports running
on a computer unless you use non-standard IRQs. COM1 and COM3 traditionally
use the same IRQ and COM2 and COM4 use the same IRQ. So you can only use
COM1 or COM3 at one time... or the system may just arbitrarily only use one
of then COM ports. Special HIGH-IRQ serial cards try to get around this...
but you have to be very careful with you configuration if you do this.
GOOD LUCK.
I hope this kind of helps. I've used computers since the beginning and the
world of IRQs is frustrating to put it mildly. Please feel free to ask any
additional questions if you need.
--- Charles
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Stevens, Brett
Sent: Tuesday, November 23, 1999 6:43 PM
To: '[EMAIL PROTECTED]'
Subject: Modem Woes
Hi,
I have a problem at the moment that I can't solve.
I have a modem that is ok with Linux (It has run before) I have upgraded my
hardware and done a full re install. However I cannot get the modem to talk.
If I use minicom and I init the modem I get the terminal ready light come on
but I get nothing back from the modem. The fact that I am able to send
something to the modem tells me that the modem is talking to the serial port
(again I think)
Setserial shows that /dev/modem and /dev/ttyS0 are on and working (I think)
t
The system is a AMD K6 400 PCI bus with 128 ram voodoo 1 and S3 video,
Plenty of disk space. The modem used to work on an older Linux server and I
have tested it on a windoze system ok The modem is a dynalink 33k
PnP is on but I have the same results when it is off
Can anyone help?
Thanks
Brett Stevens
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