[mythtv] Making the state of the frontend dependant on the

Steven Adeff adeffs.mythtv at gmail.com
Wed Jun 13 18:21:02 UTC 2007

On 6/11/07, Martin Ebourne <lists at ebourne.me.uk> wrote:
> On Mon, 11 Jun 2007 20:54:41 +0200, Ma Begaj wrote:
> > 2007/6/9, Mike T. <mike at thesandbenders.com>:
> >> Has anyone researched or worked on controlling the state/behavior of
> >> the MythTV Frontend based on the state of the TV(s) it's supporting?
> >
> > That is very interesting and it would be great to implement something
> > like this. This topic should not disappear with only one answer.
> FWIW I do something similar to Robin. My LG TV has a serial port on the
> back, so the frontend computer controls the TV power over that which
> works very well.
> I have the screensaver cut in after 5 minutes on the menus, it does a
> random slideshow from our photo album for 10 more minutes, then switches
> the TV off. As soon as any button is pressed on the remote the
> screensaver stops and the TV is switched straight back on. This beats
> the original idea because there's no need to even switch the TV on and
> off from the remote.
> Previously I tried using the DPMS to control the TV power, which is the
> opposite of the original idea. I gave this up due to power consumption.
> The 37" LCD TV uses about 150W when on, hardly any less on the first
> DPMS state, and still 20W in the maximum DPMS state. By contrast using
> the serial port it goes into standby the same as using the remote, which
> consumes 4W and is much more reasonable.
> As far as I know the computer cannot query the TV power state over DPMS.

how do you control the TV over the serial port?

Before you ask, read the FAQ!
then search the Wiki, and this list,
Mailinglist etiquette -

More information about the mythtv-dev mailing list