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Re: dialog --pause not timing out on serial console (dialog 1.2)

From: Stefan Puiu
Subject: Re: dialog --pause not timing out on serial console (dialog 1.2)
Date: Fri, 23 Jul 2021 16:07:49 +0300

Hi Paul,

On Thu, Jul 22, 2021 at 1:29 PM Paul Fertser <fercerpav@gmail.com> wrote:
> Hi,
> On Fri, Jul 16, 2021 at 01:16:52PM +0300, Stefan Puiu wrote:
> > >     What you'll probably need is 'terminator' to wrap DTR to DCD to make
> > >     the driver think a terminal is attached when there is none.
> >
> > I probably need to read a bit on serial ports and consoles. Not sure
> > what you mean by 'terminator' here.
> My guess is that something like an "RS-232 loopback plug" is meant
> here. So that when terminal is not attached one would instead insert a
> dummy connector with a wire shorting DTR and DCD lines.

I suspected Rich was talking about a hardware tweak, but was secretly
hoping for a software workaround :). Thanks for chiming in.

We have multiple instances (at least a dozen in our lab, I think) of
this board, some of which have been sold to customers, so hardware
tweaking is not a practical solution for us, unfortunately.

I was hoping there is some sort of stty invocation or other software
tweak to 'fix' the console. In most cases, the script invocation
succeeds; it's just the few situations where manual intervention is
required that are annoying.


> --
> Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
> mailto:fercerpav@gmail.com

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