Disabling auto-wake on presentation source connect

[javinodr1]

How can i disable that annoying new TC7+ feature, that auto-wakes a system from standby when a presentation source is attached?

I'm in the process of moving away from having one VGA for direct connection to projector, and one for video conferencing, and i want there to be 1 HDMI cable that sends video to both at the same time, using a HDMI signal splitter. 

But i don't want the video system to wake up when the cable is attached.

Why am i not just running all presentations through the video systems, you may ask?

Well, a lot of people do not like having a camera turned on them when they are just going to present something, but not use video conferencing.

And adding a expensive crestron system for a simple small meeting room is not an option.

Systems: SX20, C20

[Patrick Sparkman]

Don't think what you're looking for is possible, it appears it's automatic and no way to disable it.  Looking at the admin guide for a TC7 codec it says the following.

Video Input Source [1..3] PresentationSelection

Define how the video system will behave when a presentation source is connected to the video input. In general, any input source can be used as a presentation source; normally, the main camera (self-view) will not be used as a presentation source.

If the video system is in standby mode, it will wake up when you connect a presentation source. Note that sharing the presentation with the far end always requires additional action (tap Start Presenting on the Touch controller, or press the Presentation key on the remote control).