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

Gary Buhrmaster gary.buhrmaster at gmail.com
Fri Feb 28 21:31:43 UTC 2014


On Fri, Feb 28, 2014 at 7:11 PM, Hika van den Hoven <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.
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