On Fri, Nov 07, 1997 at 07:08:59PM +0100, Matthias Drochner wrote:
> Excerpts from netbsd: 7-Nov-97 serial console problem Kevin
> Sullivan@psc.edu (955*)
> 
> > whenever I turn off the terminal (which 
> > is on the console serial port) the machine hangs.  The machine starts up 
> > again when the terminal is turned back on (though sometimes it has been 
> > thrown into ddb).
> 
> Perhaps the power-off causes a line break condition,
> which will invoke DDB?
> For the case without DDB, I don't have an idea.

A handshaking problem perhaps?  Maybe the CTS input of the PC goes inactive
when the terminal is powered off which prevents any console messages
being printed to the serial port.  I had this problem on Sparc and had to
wire the CTS signal so that it's always active.

  -jm


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