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Home Technical Dahua

How to fix: No Video on monitor or TV (Dahua recorder)

Marco Albertini by Marco Albertini
in Dahua

If you are getting an error on your TV or monitor that shows the message “Mode Not Supported”, “Format Not Supported” or “Out of Range” you will need to find a monitor or TV that supports the DVRs (or NVR) resolution. This error shows up when the DVR is outputting a certain resolution and the monitor (or TV) is not supporting it.

By default, the Dahua DVR or NVR will be set to 1280 x 1024 out of the box. Once you hook it up to a monitor or TV, the recorder will automatically switch to the right format and resolution. However, that’s not the case if the resolution has been priory changed in the display settings to a resolution higher or lower.

To bypass this “out of range”/”format not supported” issue, you’ll need to use an HDMI or VGA cable to connect the recorder to a TV or monitor that supports the resolution. Once you have plugged your DVR/NVR into a supported monitor you may modify the settings in the guide below.

Note: this guide works for Dahua and their OEMs sold under these brands: Activecam, Advidia, Amcrest, Ameta, Ascendent, Backstreet Surveillance, BV Security, CCTV Security Pros, CCTV Star, CP Plus (Orange Line), Dax Networks, eLine, ENS (formerly Eastern CCTV and SavvyTech), Expose, Lorex, GSS, Honeywell, IC Realtime, Ikegami, Impath Networks, Inaxsys, IndigoVision, Infinity CCTV, Innekt, Intelbras, KBVision, Lumixen, Maxron, Montavue, Oco, Optiview, Rhodium, RVI, Saxco, Security Camera King (Elite), Space Technology, Speco, ToughDog, Tyco Holis, Tyco Illustra Essentials, Unisight, VIP Vision, Watchnet, Winic, Zuum.

How to fix the “Format Not Supported” issue?

Step 1. Log into your DVR or NVR using your username and password. From the Main Menu, select System.
Step 2. Select Display on the left column and select the resolution bar. Select the desired display resolution. Then click Apply and Save. The settings will be applied after the system reboots.

Once you have set the resolution correctly you may connect the DVR/NVR back to the original monitor/TV (the one that was showing no video). Select the right input source using the monitor’s remote or buttons.

Marco Albertini

Marco Albertini

Italian-born Marco Albertini, with a background in Computer Science, found his passion in security camera systems, alarms, and cloud services. Based in New York since 2010, he's a sought-after expert, assisting numerous businesses and homeowners in securing their properties with advanced solutions.

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Comments 1

  1. Meris Tricic says:
    4 years ago

    I switched the resolution on the machine and now the mouse doesn’t work and doesn’t let us switch cameras. It’s just going thru it by itself.

    Reply

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