[mythtv-users] Preventing FE changing TV HDMI source at Boot

[John Pilkington]

On 28/02/14 21:38, Chris Lewis wrote:
>
> On Feb 28, 2014 9:32 PM, "Gary Buhrmaster" <gary.buhrmaster at gmail.com
> <mailto:gary.buhrmaster at gmail.com>> wrote:
>  >
>  > On Fri, Feb 28, 2014 at 7:11 PM, Hika van den Hoven
> <hikavdh at gmail.com <mailto:hikavdh at gmail.com>> wrote:
>  >>
>  >> .....
>  >> Short of disconnecting the cable from the TV, I don't think so.
>  >> The design assumes you want to watch from a port that gets the signal
>  >> the other side has just switched on, Which normally is the case.
>  >> With scart (analog) it is a pin that is set high, so you could
>  >> disconnect that pin. But with hdmi is a digital signal.
>  >> Possibly you can set your video card, not to send the activation signal,
>  >> but I haven't heard about that.
>  >
>  >
>  > CEC is signaled on a single wire, so one could construct a
>  > cable (or modify one) to cut that wire.
>  >
>  > The easier solution is (probably) to use a DVI <-> HDMI adapter
>  > on your video card, since DVI does not have a CEC connection.
>  >
>
> Thing is the hdmi is carrying sound too!
>
> Chris

I use a DVI > HDMI adapter, but the TV still switches from antenna to 
HDMI input when the VGA monitor, which usually carries Myth and several 
other KDE windows from the same videocard, leaves screensaver mode. 
I've seen this but I haven't investigated it.  Presumably it isn't CEC 
related.

John P