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LED Screen - RGB Full Range

Guillaume Neyret

August 27, 2024 16:01

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Hello, 

I've got an issue with my XC4055 and my LED Screen. I don't manage to change the rgb range to full range. So my black content is display dark gray.

I've tried using this https://github.com/brightsign/video-mode-plugin/blob/master/SetMultiScreensVideoMode.brs video mode plugin. It does change the resolution, color space and framerate but not the rgb range. ("1920x1080x60p:rgb:fullrange")

I've also tried with a Script Plugin (https://github.com/brightsign/BrightAuthor-Plugins/tree/master/Set-Video-Mode) using the SetMode function (https://brightsign.atlassian.net/wiki/spaces/DOC/pages/370672969/roVideoMode#SetMode(mode-As-String)-As-Boolean-%5BinlineExtension%5D ). Here the issue is a bit different, the setMode function seems to work but triggers an application restart, causing the presentation's default VideoMode settings to reapply.

The documentation is not really clear to me and there is not a single example of the changing the rgb range somewhere (just custom resolution and color space).

PS : I am using BA connected :) 

Thank you by advance for your help ! 

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2 comments

• 0
  
  Guillaume Neyret August 27, 2024 16:37

  But the videomode seems to have been changed when using the Video Mode Plugin; 
  But the LED Screen stay exactly the same

• 0
  
  Vijayan T April 07, 2026 00:24

  I used SetSingleScreenVideoMode.brs, it works fine for me. I am seeing deep black. no more gray.
  
  

  Function SetVideoMode(videoModeInputs, bsp) As String

    print "video mode plugin, Series 4 or earlier: SetVideoMode()"
    ' Example: manage the options of a supported video mode
    ' See options you can set - https://brightsign.atlassian.net/wiki/spaces/DOC/pages/370672969/roVideoMode#roVideoMode-SetMode(modeAsString)AsBooleansetmode
    ' return "1920x1080x60p:rgb:fullrange"

    ' Example: set the video mode to be a custom mode.
    ' Custom Modelines allow the player to play back video modes that are not natively supported in BrightAuthor:connected or BrightAuthor's Video Resolution
    ' down and not listed under https://brightsign.atlassian.net/wiki/spaces/DOC/pages/370676833/Supported+Video+Modes.
    ' These are considered, "custom".
    ' The following code block is a example of and how to generate or grab the modeline - https://brightsign.atlassian.net/wiki/spaces/DOC/pages/420217686/Applying+a+Custom+Resolution
    vm = CreateObject("roVideoMode")
    vm.SetCustomModeline("Modeline 1440x1920x50p 151.83 1440 1490 1510 1554  1920 1935 1939 1954  -hsync -vsync")
    ' return "custom"
    return "1920x1080x60p:rgb:fullrange"

  End Function