Problems with DTR

Gert Doering (gert@greenie.muc.de)
Wed, 16 Sep 1998 20:43:26 +0200


Hi,

On Wed, Sep 16, 1998 at 11:05:41AM +0200, Joerg Hartmann wrote:
> to do some support.
> The modem is an ELSA MicroLink 56k.
> Mgetty initializes the modem and gets his OK after ini-chat, but
> 8 of 10 times DTR is not ON after that.

I'd say it's a serial port/serial cabling problem.  Mgetty doesn't really
do anything unusual here, nothing that hasn't been in the code unchanged
since at least a year or so.

[..]
> I have installed some dozend mgetty's in the last 4 years and never
> had such problems.
> Could it just be a broken serial port on the pc ?

That would be my guess.  Loose cable, flakey chip (on-board serial ports
tend to be very low-quality junk nowadays).

gert
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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de