[mythtv-users] Cable box always on
Krzysztof Adamski
k at adamski.org
Wed Apr 2 15:09:45 UTC 2008
On Mon, 2008-31-03 at 01:00 +0100, Kim Wall wrote:
> Steve Peters - Priority Electronics wrote:
> > So does everyone just leave the cable box on all the time? Or is there
> > something that can be done to turn it on and off automatically in myth
> > (or by an external script)?
>
> One solution, which I'm using for a Sky satellite receiver here in the
> UK: My backend is on a dedicated box which shuts itself down when idle
> (woken by ACPI for recordings and WOL by frontends). I simply used a
> 12V relay with mains-rated contacts, powered from the backend machine's
> +12V supply, to switch power to the STB (and an RF distribution
> amplifier feeding the two DVB tuner cards). So when the backend
> machine's on, the STB and amp are on, and when it's off they're off.
> All done with suitable enclosures and connectors, of course.
>
> The STB takes a couple of minutes to sort itself out after being
> deprived of power, so I've got a script that sleeps for an appropriate
> length of time and sends a "power on" command via IR blaster before
> mythbackend is allowed to start.
>
> Okay, it's a bit of a hardwarey solution and doesn't apply well to a
> backend that's on 24/7, but it does cut the STB power consumption to
> zero when not in use, and more critically ensures that the STB gets
> power-cycled on a regular basis (Sky boxes have a tendency to lock up or
> otherwise get confused, and this means that at worst it will miss a
> single evening's programming, rather than several days before someone
> notices the problem).
For BE that are always on, you could use the X10 system to powercycle
the STB.
K
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