Tag Archives: HDMI

Raspberry pi notes : Custom HDMI modes for 7″ (800×480) displays and 4.3″ / 5″ (480×272) displays

In order to make 7″ LCDs (800×480) work with RPi, follow these steps.

  1. Boot RPi
  2. sudo nano /boot/config.txt
  3. Add following lines..
  4. #increase HDMI signal strength (just a black screen if not set!)
    config_hdmi_boost=4#remove black borders
    disable_overscan=1#set specific CVT mode
    hdmi_cvt 800 480 60 6 0 0 0

    #set CVT as default
    hdmi_group=2
    hdmi_mode=87

  5. ctrl + x and ‘y’ to save the fine.
  6. sudo reboot

In order to make 4.3″ or 5″ LCDs work with RPi, (480×272), follow these steps

  1. Boot RPi.
  2. sudo nano /boot/config.txt
  3. Add following lines…
  4. config_hdmi_boost=4
    #remove black borders
    disable_overscan=1#set CVT as default
    hdmi_group=2
    hdmi_mode=87
    hdmi_timings=480 0 1 41 2 272 0 2 10 2 0 0 0 60 0 9009000 3
  5. Ctrl + x and ‘y’ to save the changes.
  6. sudo reboot

Hope it helps.