I had some time tonight and have the following advice.
Start off using a keyboard and mouse ...
As suggested by aBUGSworstnightmare:
Edit /boot/firmware/cmdline.txt and the following to the line. Make sure that it remains one single line of text.
This assumes that you are plugging the display into the HDMI port closest to the power input on the Raspberry Pi 4.
Reboot and then login to the desktop. If you can get it, run Preferences -> Screen Configuration
I couldn't get to that menu at first and so ran raindrop from a terminal.
From Screen -> HDMI-A-1 set the resolution to 800x480 and set the Orientation to the rotation that you require.
For the touch screen. Edit /boot/firmware/config.txt and add one of the following lines to the end of the file, depending on which rotation you require.
Normal orientation:90 degree rotation:180 degree rotation:270 degree rotation:What is missing? Calibration of the touch screen. I don't use a touch screen myself and form my quick search of the internet I couldn't work out how to calibrate a touch screen using Wayland.You could always switch to X11 using sudo raspi-config and navigating to Advance Options -> Wayland and choosing X11.
Then install xinput-calibratorAnd run xinput_calibrator
I tried this myself, but it didn't work so well. I hope this helps, it is about as far as I can go.
Start off using a keyboard and mouse ...
As suggested by aBUGSworstnightmare:
Edit /boot/firmware/cmdline.txt and the following to the line. Make sure that it remains one single line of text.
Code:
video=HDMI-A-1:800x480M@60DReboot and then login to the desktop. If you can get it, run Preferences -> Screen Configuration
I couldn't get to that menu at first and so ran raindrop from a terminal.
From Screen -> HDMI-A-1 set the resolution to 800x480 and set the Orientation to the rotation that you require.
For the touch screen. Edit /boot/firmware/config.txt and add one of the following lines to the end of the file, depending on which rotation you require.
Normal orientation:
Code:
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900Code:
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900Code:
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900Code:
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900Then install xinput-calibrator
Code:
sudo apt install xinput-calibratorI tried this myself, but it didn't work so well. I hope this helps, it is about as far as I can go.
Statistics: Posted by AndyD — Wed Nov 27, 2024 10:25 am