Quoting Pigeon <[EMAIL PROTECTED]>:
[snip]
> Messages only go from the UPS to the computer... but the UPS clearly
> receives something FROM the computer, which affects its LED... and
> you're supposed to use XON/XOFF ("software") flow control.
>
> My guess is that the UPS is using the hardware flow control signals
> (RTS etc) to determine whether or not the computer is switched on;
> Linux initialises these differently from Windoze; and the UPS
> therefore thinks that the computer is not switched on, and doesn't
> bother to provide power when you kill the mains.
>
Stopping and starting the APC ssd daemon on my SuSE box does cause the
green LED to turn off and on. (Debian is on a sandbox machine and a
laptop. They don't rate a UPS).
Jeffrey
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