The VidiU, VidiU Pro and VidiU Mini will automatically send a blue screen if a video signal is not detected on the HDMI video input connection.
This blue screen is visible in the iOS app, the web user interface, and on any streams sent out from the VidiU.
This allows you to send out a stream and test network functionality even if you don't have an external camera or video source connected to the VidiU.
If a video source is connected with an HDMI cable and you're still seeing a blue screen in the VidiU's stream, please try the below troubleshooting steps:
- Confirm that the Video Input Status LED is illuminated on the VidiU as described in these articles.
- Check the HDMI cable to ensure that it's making a good connection, and try a different HDMI cable to rule out a bad cable.
- Confirm that the video source is configured to send a compatible video format to the VidiU; compatible video formats are listed in this article.
- Confirm that video output is present from the source by testing on other monitors or devices. Some video sources like DSLRs or consumer/pro-sumer level camcorders may change video output modes when they start recording, or may shut off the HDMI output entirely. Some of these limitations are mentioned in this article.