I am trying to set up a Kedei Raspberry Pi Display version 1.1 2017/10/10 Type 3590 (horizontal 800*480px) with my Pi 4. Unfortunately, I didn't manage to get the Touch Screen running on SPI. The HDMI input works so far!

For now, I followed this tutorial (Sorry, its German, but its more or less a translation of the eBay seller's tutorial). I also tried to download the "official" Kedei Driver (LCD_show_35hdmi_Horizontal).

Until now, my screen wasn't working, it just shows a blue/black screen.

Do you have any ideas what I might do wrong? On the Kedei page, it doesn't list the Pi 4, might this be a problem?

My /boot/config:

hdmi_cvt 800 480 60 6 0 0 0 
  • I've edited in the information you had put in a comment. In future if you have more information to add to a question you can use the edit button at the bottom of your question. Since you're new here I recommend you take the Tour to find out how things work. – Darth Vader Aug 24 '20 at 16:26

Your dtoverlay value looks wrong in your /boot/config.txt file.

Follow this guide: http://www.epyon.be/2019/01/12/raspberry-pi-3-b-with-kedei-3-5-inch-480x320-tf-lcd-display/#comment-161327

PS: You will have to do this every time you do a kernel version upgrade so that the kernel links are re-established.

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