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