Hi please assist with this weird issue,
On the UC-CX-100-T, whenever presentation media is connected, the presentation will popup on the TP and then disappear, shortly thereafter, it propagates onto the projectors and the TP mimics the second display of the UC engine and we cannot access the room controls anymore. This happens if the projectors aren't switched on before the presentation media is connected, if this is done the other way around the system functions correctly. 

Although this is how it should be done, my client's argument is that this was not the case before the windows 11 update on the UC Engine and multiple users keep logging the same ticket. 

I have contacted crestron support and they insist that this should work if "the system is used correctly". 

Please see below for a detailed system architecture...

I have a UC-CX-100-T which is setup as below:

• Touch panel is connected to the switch.

• 2x HD-MD-4k-400 TX with HDMSI and 2x VGAs leads to 2x cable Cubby's.
• HD-MD-4K-400 RX Outputs goes into HD-MD4X1-4KZ-E in 1 & 2

• HD-MD4X1-4KZ-E out goes into HD-TX-101-C-E then HD-RX-101-C-E Goes onto UC-PR HDMI input which then goes back to CONV-260 then into Dell Engine
• UC Engine Output goes into HD-DA2-4KZ-E then to projectors. 

I'm running a simple program on an RMC 4 which the user can switch the projectors on and off and do various other things which do not affect teams.

The most notable things I have done in trying to resolve this was clearing the video feed on the MD4X1 when the system is shut off and send a default video on system start/power on with a delay of about 10 seconds.

 

Sounds like a similar issue I have with nearly every single Logitech teams system I have ever installed.  

The issue we commonly face is the output of the teams compute confuses itself when the displays are turned off.  It seemingly doesn't realise that displays are still connected when they are switched off and tries to re-arrange the video outputs and you end up with your touch panel displaying what would normally be on the actual display, or something of that nature.  

My solution so far has been to put edid minders between the output of the the compute and the display. The edid minder would need to be powered from the compute side, therefor when the displays are off, the compute is none the wiser.   In another job, I didn't have an edid minder, but I did have a creston tx201c, which effectively did the same thing. It just maintained video sync for the output of the compute. You just need something in line with the output of the compute that will maintain video sync and stop it confusing itself when the display are off. I your case, you would need something between the output of the compute and the HD-DA2. 

Man, I miss the old days of av integration. These days it just seems like all we do is troubleshoot shitty teams systems and plug usb cables in and out and hope things work.