[mythtv-users] Laptop - front end question...

David Brodbeck gull at gull.us
Fri Sep 14 23:24:59 UTC 2007

On Sep 14, 2007, at 4:06 PM, A JM wrote:
> It's a Latitude 4100, since you guy's think there currently isn't  
> an on/off remedy I was thinking about using a modification I used  
> on my xbox (http://xir.us/xirpro.aspx ) that worked well I guess I  
> could bypass the on/off switch, what do you guys think?

Just brainstorming here -- If your laptop has a "wake on ring"  
feature in its BIOS, you might be able to interface that device to  
the serial port and avoid opening up the machine.  I think you'd just  
have to pull the RI (ring indicator) pin high.  This is pin 9 on a  
DB-9 serial port.  Note that RS-232 uses negative voltages to  
indicate a logic 1, so that means applying -3 to -12 volts.  You  
could probably test it with a 9-volt battery before spending any  
money on hardware.

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