In article <C5Hu2G.xI@synoptics.com> of comp.os.linux,
  jkaidor@synoptics.com writes:

quoted text
> trip when a large group of *pulses*  came out of the computer.  Now, it's probably not usual to see
> a couple thousand pulses come out of a DTR output, is it? 
> 

My guess would be that a better bet is to require is to:

a) Require the power to be on well beyond the bootup period (say 10
   minutes) before even monitoring the input.
b) Require it to keep an asserted level for several seconds.

Just my $0.02 worth.
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