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Re: SS20 serial port woes



Philippe Troin wrote:
> 
> Marco Gaiarin <gaio@sv.lnf.it> writes:
> 
> > Mandi! Philippe Troin
> >   In chel di` si favelave...
> >
> > >   1. When the machine is at runlevel 2, I can start minicom, login via
> > >      the serial console. If I close minicom without logging off, my
> > >      session stays pending there, waiting for the next person to run
> > >      minicom.
> >
> > Sorry, i've no answer to this...
> >
> >
> > >   2. Sometimes, the machine will go back to the OpenPROM prompt
> > >      without any reasonable cause. This happens whether or nor minicom
> > >      is attached to the serial console... If minicom is attached, I
> > >      can see the following output:
> >
> > ...but for this... i've a PC attached via serial line to a SS10, and
> > also my SS10 hangs (i found now and then the ``ok'' prom prompt).
> > Simply i've noticed that halt/boot my PC with serial connected send in
> > some way a BREAK signal to serial line, and BREAK in serial console
> > language are interpreted as Stop-A.
> >
> > Now i live with serial cable disconnected, i plug these only if needed
> > and my SS10 have month of uptime... ;)))
> 
> Yes, but the problem happens even when the computer acting as the
> console stays up all the time, with a minicom attached to the serial
> port...

Bad cable.  The machine that stays on all the time, does it ever go
to sleep?

a




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