Amazon / MHS-3.5inch Display

• affichage double ecran possible (hdmi + lcd)
• 3.5inch TFT SPI 320*480 (Pixel)
• Touch Screen Controller: XPT2046
• LCD Driver IC: ILI9486

Installation

• PalmOS on Raspberry Pi - About that display… I found at least three different repositories containing more or less the same drivers. All of them required installation of closed-source binaries and some would even overwrite critical files on the OS, like /boot/cmdline.txt, /boot/config.txt, /etc/rc.local and some others I can’t remember now. Eventually I settled on this one: https://github.com/goodtft/LCD-show ; but instead of running the installer, I manually copied just tft35a.dtbo (the device tree overlay binary I thought matched my display) onto /boot/overlays and added a line to /boot/config.txt: dtoverlay=tft35a:rotate=0

• Adventures with SPI TFT screens for the Raspberry Pi
• Setting Up Raspberry Pi 4 3.5” Touch Screen XPT2046
• Setting up an LCD screen
• ILI9486L doc

Using Alternate repo - Recommanded script work better

wiki

$ git clone https://github.com/waveshare/LCD-show.git
$ cd LCD-show/
$ sudo ./LCD35-show

Raspberry-pi reboot and screen should be working.

Prerequesite

• Install UI desktop on raspbian

$ sudo /home/pi/scripts/install-desktop

• Cannot open display, Xinit failing, …
• by default .xsession is missing

Driver installation from vendor Binary driver Github

use Alternate repos instead!

$ git clone https://github.com/goodtft/LCD-show.git
$ chmod -R 755 LCD-show
$ cd LCD-show/
$ sudo ./MHS35-show

Might need to re-enable pi-webcam at some point

$ sudo raspi-config

Issue with X11 Display

raspi-config options Boot Options

• B1 ?

Advanced Options

• overscan => disabled
• resolution set to 740x480 (physical is 320x480)
• enabled GL full KMS
• enabled compositor