RPi HDMI LCD Touchscreen

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Found 2 low cost '5 inch HDMI LCD Touchscreens' 800x480 on eBay...

HDMI 800x480 setting

Both work with the following code in /boot/config.txt (found here)

#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

Touch & power

Here are some 'hints' to get them working... (user space drivers with /dev/uinput events injection)

52pi

WaveShare

Notes

  • There is now an official RPi 7 inch capacitive screen.
  • Injecting events in /dev/uinput (from a user space driver) is the easiest way to get something working (and keep it working after kernel upgrades)