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HDCP Black Screen HD1025

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Parker DePond
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Hello,

I’m working on connecting a BrightSign HD1025 to a ViewSonic IFP5550-5F. When I connect the player, the screen remains black—however, touch functionality is active, and the content appears to be playing. When I connect the same HD1025 to a standard computer monitor, everything displays normally.

I suspect the issue may be related to HDCP compatibility between the two devices.

To troubleshoot, I attempted to modify the internal registry using the following script in the autorun file:

Sub Main()
    reg = CreateObject("roRegistrySection", "device")
    reg.Write("hdmi_mode", "13")        ' Sets resolution to 1080p60
    reg.Write("hdcp_enable", "false")   ' Disables HDCP
    reg.Flush()
End Sub

Unfortunately, this did not resolve the issue.

Interestingly, I’ve been able to run the same presentation on this ViewSonic display using a BrightSign XT1144 without any problems.

This ViewSonic display is the only option available to my client, so I’d love to find a way to make the HD1025 work with it.

Thanks in advance for any insight or suggestions.

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    Alice Richards

    Hello! It sounds like you've done some good initial troubleshooting. It's interesting that the XT1144 works fine while the HD1025 doesn't with the ViewSonic IFP5550-5F. Your suspicion about HDCP is a reasonable one, especially given the different behavior with the two BrightSign models.

    Since disabling HDCP in the registry didn't work, there might be a couple of other avenues to explore. Here are a few thoughts and suggestions:

    1. EDID (Extended Display Identification Data) Issues:

    The ViewSonic display communicates its supported resolutions and capabilities to the connected device via EDID. It's possible the HD1025 isn't correctly interpreting the EDID information from the ViewSonic, even if it's a standard resolution.
    Try forcing a specific, lower resolution: While you've tried setting it to 1080p60 (mode 13), perhaps trying a slightly different or lower resolution might help establish a connection. You can find a list of hdmi_mode values in the BrightScript documentation. For instance, try "4" for 720p60 or "16" for 1080i.
    Consider an EDID emulator or cloner: These devices sit between the player and the display and can provide a consistent EDID signal that the BrightSign can understand. This might bypass any compatibility issues with the ViewSonic's EDID.
    2. HDMI Cable and Connection:

    Try a different HDMI cable: Although it might seem obvious, a faulty or incompatible HDMI cable can sometimes cause display issues. Ensure you're using a high-quality, certified HDMI cable.
    Check the HDMI port on the ViewSonic: Try using a different HDMI input on the ViewSonic display. It's possible one of the ports might have a slightly different configuration or be experiencing a minor issue.
    3. BrightSign Firmware:

    Verify the firmware version on the HD1025: Ensure it's running the latest stable firmware. Sometimes, firmware updates include fixes for compatibility issues with certain displays. You can check and update the firmware through BrightAuthor or BrightSign Network.
    4. ViewSonic Display Settings:

    Explore the ViewSonic's input settings: Check if there are any specific settings related to the HDMI input being used (e.g., input format, video mode). While the XT1144 works, it's worth double-checking if there are any subtle differences in how the inputs are configured.
    5. BrightSign Configuration Files:

    Examine the BrightSign presentation files: Although it works on another display, there's a slim chance some specific video encoding or presentation setting might be causing an issue specifically with this ViewSonic display. Try a very basic presentation with a single image or color bar to see if that displays.
    Why the XT1144 Might Work: njmvc

    The BrightSign XT1144 is a more powerful and recent model compared to the HD1025. It likely has a more advanced HDMI chipset and potentially better handling of EDID and HDCP negotiation. This could explain why it works seamlessly with the ViewSonic while the older HD1025 struggles.

    Given that the registry modification didn't resolve the HDCP issue, it's possible the problem lies deeper in the hardware or how the HD1025 communicates with this specific display model.

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