USB-C pass through not getting detected

[Parvez2227]

Hi all,

Can you help me out.

I am facing problem while connecting USB-C cable to my Lenovo M720Q desktop,

Showing Display connection might be limited on my desktop, while I have upgraded all drivers for audio, video and usb as well on my desktop

I can see on device management l, it's showing desktop camera and speaker but screen is not getting on deskpro.

And there nothing happening on deskpro

 

[Sunny Khandale]

For extension of display to the Webex Desk Pro your Computer must support Alt-mode Display Port(This is mentioned in the data sheet for Webex Desk Pro "USB-C BYOD" section). https://www.cisco.com/c/en/us/products/collaboration-endpoints/webex-desk-pro/datasheet-c78-743105.html 
Which I believe is not supported on the desktop model you mentioned.

Next to the ports of a PC are symbols / logos, which indicate what you can do with the port.

1. Is there a symbol of a lightning (Thunderbolt 3) next to the USB C port? Then you can charge via this port and pass on a video signal and thus connect a monitor. This port supports DisplayPort alt mode.
2. Is there a symbol of a D (DisplayPort) next to the USB-C port? Then you can pass on a video signal via this port and thus connect a monitor. This port supports DisplayPort alt mode.
3. Is there a symbol of a battery next to the USB C port? Then you can charge your laptop via this port. This port does not support DisplayPort alt mode.

 

[Parvez2227]

Thanks @Sunny Khandale 

[Wayne DeNardi]

As @Sunny Khandale indicated in his reply, your Lenovo M720Q desktop PC only has SuperSpeed (SS) USB-C ports on it, not any that will support Display Port, so it will not work.  You will need to change your PC to one that supports USB-C DisplayPort Alternate Mode if you wish to use the DeskPro as monitor/camera/speakers for your PC.