Volumio 3.5 inch display (Quimat 3,5’’ Zoll) cannot be installed

Interestingly, the same error occurs as described before.

If I swipe from the bottom right to the top right, the mouse moves from right to left.
If I swipe from bottom left to top left, it moves from bottom right to bottom left.
If I swipe from right to left, the mouse pointer goes from top to bottom.

I’m still trying the 2nd thing you wrote.

You mean as in post #15 or #17?

Assuming “SwapAxes” was set to “1” these results sound like “SwapAxes” needs to be “0” :thinking:

For all those who think this is too confusing and have the same problem, the solution summarized:

Problem: display remains white (manufacturer’s driver, destroys Volumio Image); Touchscreen cannot be calibrated

My display: Quimat 3.5 inch touch

Tips: If downloading and copying is too complicated, download this then plug the micro SD of the Pi into the computer and you can easily insert and edit the files.

Solution:

1. Reinstall the Volumio image (not absolutely necessary, but recommended)

2. Open /boot/userconfig.txt

Paste this:

dtparam=spi=on
dtoverlay=tft35a:rotate=90

3. Save and reboot

4. Install the touch display plugin

5. download this here: „ tft35a-overlay.dtbdownload and copy it into „/boot/overlays/tft35a.dtbo" (Don’t forget to rename!)

6.Open “/usr/share/X11/xorg.conf.d/99-fbturbo.conf” and change the options

Option "fbdev" "/ dev / fb0"

to

Option "fbdev" "/ dev / fb1"

then reboot

7.The display should now work

8.In order for the touchscreen to work correctly, it must be calibrated. Create (edit) the file “99-calibration.conf” and add the following content:

Section "InputClass"
        Identifier      "calibration"
        MatchProduct    "ADS7846 Touchscreen"
        Option  "Calibration"   "3936 227 268 3880"
        Option  "SwapAxes"      "1"
EndSection

and save it in “/etc/X11/xorg.conf.d/”

9.Change the rotation to 270 ° in the settings of the touch screen plug-in.

10.Everything should work now

The biggest thanks go to, please @gvolt.

He tried everything with me for 2-3 days and supported me very well, thanks to him I can now offer these instructions here.

If there are translation errors, it’s my fault, I’m 17 and come from Saxony in Germany, and I don’t have the best English. Thank you so much for working with @gvolt!! :blush: :blush: :crossed_fingers:

2 Likes

Runs perfectly with this MHS 3,5 inch display!

It took me a while to figure out how to rotate the display and touchscreen to the correct orientation, but it worked!

Thanks!

:+1:

Hi!

  • after updating to latest version 2.874 touchscreen doesn’t work anymore.
  • had to reinstall and activate touch plugin.
  • now it works again, but the orientation of the screen is 90 degree counterclockwise wrong, because I would like to have portrait mode, having the USB ports on the top… (rasp 4b)
  • Touchscreen plugin settings in volumio settings have no effect on it, even I take 90/180 or 270 degrees.

Any ideas?

When you rotate the screen in the plugin, you have to reboot to take in charge change.

For sure. Did it.
Does editing boot/userconfig.txt affect only the touchscreen or the orientation of the display?

dtparam=spi=on
dtoverlay=tft35a:rotate=90 <- or 0, 180, 270 ????

Now I edited boot/userconfig.txt:
rotate=0

Touch Display plugin I changed it to 90 degrees

Now it works. Everything fine.
As I mention it, I use the screen in portrait mode, with the USB ports on the topside.