600x480 to 800x480

ChrisSam

• February 05, 2021 10:07

Hello NHD Technical Team, I'm currently developing an instrument using NHD's 7" TFT Display (800x480) controlled by a Raspberry Pi 4 / 4GB. On boot I keep having this blank bar on the right of the display. I know the Rpi is sending a 600x480 data to the screen, and have to be changed to 800x480.  I have changed configuration on config.txt but the blank bar still persist. I would be glad if you could point me to the right information on how to adjust this.

Thanks in advance.  Chris...

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• 

  Ted M.

  NHD Staff

  • February 12, 2021 10:07

  Hi ChrisSam
  
  Uncomment hdmi_drive=1 In your config.txt and give it a try.
  
  # uncomment to force a specific HDMI mode (here we are forcing 800x480!)
  hdmi_group=2
  hdmi_mode=87
  hdmi_cvt=800 480 60 6 0 0 0
  hdmi_drive=1
  
  Also, the Raspberry Pi 4 has 2 HDMI ports so you may wish to try
  
  hdmi_cvt:0=800 480 60 6 0 0 0
  hdmi_cvt:1=800 480 60 6 0 0 0
  
  
  Regards,

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• 

  ChrisSam

  • February 17, 2021 10:07

  Hi Ted! It worked... you are awesome.... Thanks a lot...
  
  Chris

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