Yealink HDMI ingest - lag and call failure

theflyingirishman 

Hi, Extron CTLs performing EDID emulation do help. As do simple HDMI pass-through emulators. We've proven both to help.

Just last week I got a report of screen mirroring delay again in one of our rooms, and upon checking the MTR had reverted to 4K resolution - and this is with emulators installed so I've no idea what had happened there! I took the opportunity to implement the new Resolution and Scaling options in the skypesettings.xml customisation file and did observe that the MTR system restarted in 1920x1080 resolution and this held across restarts regardless of whether EDID emulation was in-use. So this does seem like a good fix, to force the MTR itself into Full HD in software.

See the EnableResolutionAndScalingSetting, MainFoRDisplay and ExtendedFoRDisplay settings.

https://learn.microsoft.com/en-us/microsoftteams/rooms/xml-config-file

Regarding Teams Cast - it works, but we don't like it as it confuses our users. If there isn't an active Teams call to join, one is created meaning your experience if all you want to do is mirror your screen in a meeting room is you get it on one FoR screen only and the other shows a blank participants screen which is a pretty poor experience.

I am really hoping the new XML resolution and scaling settings see an end to our screen mirroring delays once and for all.