Is there a way someone can show me or tell me how to use my touchscreen on my waveshare 3.2 clone
Working for me with following setup:
Select WaveShare32B in webconf.
In /boot/config.txt disable the ads7846 driver:
You can do it also from webconf in Display - advanced view.
Change the /etc/X11/xorg.conf.d with the following:
MatchProduct "ADS7846 Touchscreen"
Option “Calibration” "3744 152 191 3922"
Option “SwapAxes” "1"
Your calibration values may differ form the above. I did the calibration according this description:
Thanks buddy… I’ll get on that right now
Please, take a look to the “custom” folder in the zynthian-sys repository. Inside there is a subfolder called “display”, and inside there is a subfolder for every device that need customized config files:
The device’s subfolder name should match the name used in the webconf tool.
As you see, currently there is only 2 customized devices (the 2 officially supported displays ), but more displays should be added, specially for getting touch support out-the-box.
Please, consider helping to add more devices to the “custom” folder. It’s easy: When you have a configuration that works for you:
1.) Copy the files you have customized in the next 3 places:
to a subfolder inside “/zynthian/zynthian-sys/custom”, with the same name used by the webconf tool. You must re-create the directory structure inside the subfolder. Take a look to the existing examples.
2.) Try to re-configure your display from the webconf tool. If it still work after this, probably you do a good work in the previous step, so we can continue.
3.) Fork the zynthian-sys repository and copy/upload the new custom subfolder with its content, as you do it in the step 1.
4.) Send a pull request with some explanation and i will review the changes and merge with the master repo for making available the custom configuration in the next update software
I forked it and added the xorg.conf.d and overlays file
Haven’t had time to test it yet.
i tried , screen worked , but touch is still not working for me
did you try my fork? in that case I would comply with jofemodos wish.
@mheidt I copied your files from the GitHub and copied it to my zynth
didn’t work for my clone waveshare3.2b
not sure what fork is but I copied said files to my device
have you really deleted the line starting with
The line reappears every time you select a different display and reselect waveshare32b
The calibration of @norbim doesn’t work for rotated screens.
My numbers are
205 3754 3801 226
You can do your own calibration:
apt-get install -y xinput-calibrator
Create a file calibrate.sh on the zynthian that contains
make it executable
chmod +x calibrate.sh
stop zynthian and run calibrate
systemctl stop zynthian
Follow the screen instructions
In the ssh output where you started startx, you find the calibration values
Swaped X axis of touchpad - solved
Touch looses calibration [SOLVED]
got touchscreen working, but its the opersite xy??? any sujgestions?
yes, that’s what I was struggling with.
it seems, that you didn’t follow the exact instructions.
Directions change depending on the values in the 99-calibration file and the first line in the webconf ( boot/config.txt values)
The ones, that are checked in my fork work.
cool,that worked for me, your calibration worked on mine
what make is your clone?? or is it original
I want to express my appreciation - this thread helped me get to grips with my 3.5 screen (https://www.elegoo.com/product/elegoo-3-5-inch-480x320-tft-touch-screen-monitor/)! For reference, I’m starting my Zynthian using a RPi3b, a hifiberry dac+ pro, and a novation impulse connected via USB.
Despite the screen being perfect out of the box as a PiScree 3.5 (v2), I did suffer for a pesky case of inverted X axis on the touchpad only. The following shell command did the trick, though:
DISPLAY=:0 xinput --set-prop 'ADS7846 Touchscreen' 'Coordinate Transformation Matrix' 1 0 0 0 -1 1 0 0 1
To make it work at startup, I’ve now added it to /zynthian/config/zynthian_custom_config.sh - but I fear an update will take this away. That said, I hope this can help someone!
Next stop - soldering the encoders and the AIO board!
Cheap chinese Landzo 3.5 inch touch screen suffered too inverted X axis syndrome. Provided matrix values helped with this lcd too.
Awesome werewolf! Glad I could help!