Wired HDMI Screen Sharing with a capture device

Wired HDMI screen sharing is a one-plug method to share content from a laptop or mobile device to a Zoom Room. This uses an HDMI capture card to communicate between local device content with Zoom or a Zoom Room. You can also use wireless direct sharing, share.zoom.us, or Airplay to share content from your laptop or mobile device to a Zoom Room.

Note: Annotation is not available when sharing content through HDMI. Please consider using direct sharing when annotation is needed. 

This article covers: 

• How to use automatic HDMI sharing
• How to enable manual HDMI sharing 
• How to change the HDMI label
• How to use manual HDMI sharing
• How to use two HDMI capture cards
• How to setup Magewell HDMI Capture USB

Prerequisites for wired HDMI screen sharing with a capture device

• Magewell USB-HDMI, Magewell DVI Plus, Inogeni 4k2USB3* or Logitech Screen Share
  • Note: Other capture cards such as the Inogeni Share2U and Osprey Capture are camera source only
• Magewell GEN1 firmware upgraded for 16:9 capture (default is 16:10)
• Zoom Rooms for macOS, PC/PC Touch version 4.0x and higher
  • Note: If you need 2 capture cards, they have to be 2 different brands (e.g. Magewell + Logitech). If two capture cards are used in the same room, only one can be used for content share at a time. The second card can be used to share a camera.  
• (Optional) Kramer TP-580T and TP-580R for HDMI extension over Cat cabling

	macOS	Windows
Magewell	Content or Camera	Content or Camera
Inogeni	Content or Camera	Content or Camera
Logitech	Content or Camera	Content or Camera
Others	Camera	Camera

*Note: The maximum resolution with this device for a Zoom Room display is 1080p.

How to use automatic HDMI sharing

Wired HDMI sharing is automatic upon plugging in your laptop to the video capture device connected to the Zoom Room.

1. Connect the HDMI cable to the sharing device's video output.
2. Connect the other end of the HDMI cable to the capture device.
3. Connect the USB end of the capture device into the Zoom Room computer. The active video signal will automatically screen share your desktop to the output of the Zoom Room
4. Unplug the video cable to stop screen sharing. 

How to enable manual HDMI sharing 

You can disable automatic detection for HDMI sharing by selecting the manual HDMI sharing option for Zoom Rooms. This may be useful when a device is always connected, such as a dedicated/fixed content computer.

1. Sign in to the Zoom web portal as a role with access to Zoom Rooms. 
2. Click Room Management then Zoom Rooms.
3. Find the Zoom Room you want to change and click Edit.
4. Click the Meeting tab.
5. Click the Start HDMI content share manually on controller toggle to disable the setting. 

How to change the HDMI label

In some instances, it may be best to change the label the Zoom Room uses to refer to the input from the capture device. Follow these steps if you want to change the default "HDMI" label for wired HDMI sharing:

1. Sign in to the Zoom web portal as a role with access to Zoom Rooms. 
2. Click Room Management then Zoom Rooms.
3. You can use location hierarchy to change this setting for a specific room or location. Click Account Settings to change it for the entire account. 
4. Find the Customize HDMI sharing label section and click the pencil icon .
5. Enter a replacement label and click Save. 

How to use manual HDMI sharing

1. Start a Zoom Room meeting or tap Presentation on your Zoom Room controller. 
2. Plug the capture device into your Zoom Room and the HDMI cable into HDMI port of the device you are sharing from. This will start the screen share from your desktop to the Zoom TV display
3. Unplug the HDMI cable to stop HDMI screen sharing. 

How to use two HDMI capture cards

To support two HDMI capture cards, you will need to use a second HDMI capture device as a shared camera. One device will be recognized as a HDMI capture device, and the other will be recognized as a camera. Tap Share Content on your Zoom Room controller, and choose your screen share device as the sharing camera.

How to setup Magewell HDMI Capture USB

Hardware List:

• Magewell HDMI to USB adapter
• Kramer 580T Transmitter
• Kramer 580T Receiver
• High Speed 4k HDMI Cable 3ft
• High Speed 4k HDMI Cable 15ft

 Notes:

• To avoid latency, HDMI MUST be extended, not USB
• See this article to update Magewell Firmware

Diagram: