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Cisco Webex Codec Plus Auto Swapping HDMI Inputs

Zachary Lee
Level 1
Level 1

I am having an issue with my Cisco Webex Codec Plus, where the Codec tries to automatically swap to the HDMI 1 input when nothing is hooked up to the input causing the system to time out and then show a black screen because nothing is hooked up to the input. It continually swaps between the two.

Also while this is happening the touch pad won't allow me to swap the input or to hide the HDMI 1 input that nothing is hooked up to. If a laptop is hooked up to the HDMI 1 then the tablet has full control as normal, but when the device is not being used and the room is empty the Codec continually tries to connect to HDMI 1 causing it to repeatedly do the time out white screen to black screen rotation I mentioned above.

This issue didn't show up until installing the latest update to Room OS 11.3.1.17 09fdf7c0b94. I've tried power cycling both the tablet and codec, restarting both, as well as hard resetting the codec, none of which worked. Has anyone else had this issue or something similar?  

1 Accepted Solution

Zachary Lee
Level 1
Level 1

Found a solution, turns out the HDMI input 2 on the codec was faulty. Switching the PC inputs to HDMI 3 solved the issue. In case anyone else runs into this problem. Seems like the Codec HDMI ports have a potential to fail in this way in case anyone else experiences this problem. 

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1 Reply 1

Zachary Lee
Level 1
Level 1

Found a solution, turns out the HDMI input 2 on the codec was faulty. Switching the PC inputs to HDMI 3 solved the issue. In case anyone else runs into this problem. Seems like the Codec HDMI ports have a potential to fail in this way in case anyone else experiences this problem.