Waveshare 3.5inch LCD RPI (B) rev2.0 on RPI3B+ for Volumio

nadirfly · May 30, 2021, 6:05pm

now my touch work, but don’t is correct… not mach touch-buttons

nadirfly · May 30, 2021, 6:07pm

This is the 95-touch_display-plugin.conf

This file is managed by the Touch Display plugin: Do not alter!

It will be deleted when the Touch Display plugin gets uninstalled.

Section “InputClass”
Identifier “Touch rotation”
MatchIsTouchscreen “on”
MatchDevicePath “/dev/input/event*”
MatchDriver “libinput|evdev”
EndSection
95-touch_display-plugin.conf (END)

gvolt · May 30, 2021, 7:16pm

Execute

sudo apt-get install xserver-xorg-input-evdev

After installation has finished:

sudo cp -rf /usr/share/X11/xorg.conf.d/10-evdev.conf /etc/X11/xorg.conf.d/45-evdev.conf

BTW: What Volumio version are you running?

nadirfly · May 30, 2021, 9:53pm

I run the latest stable version… 2.8x

gvolt · May 30, 2021, 10:09pm

Sorry, I overlooked this.

Please create a file “99-calibration.conf” in “/etc/X11/xorg.conf.d”:

sudo nano /etc/X11/xorg.conf.d/99-calibration.conf

with the following content:

Section "InputClass"
        Identifier      "calibration"
        MatchProduct    "ADS7846 Touchscreen"
        Option  "Calibration"   "3945 233 3939 183"
        Option  "SwapAxes"      "1"
EndSection

To save the file and close nano hit Ctrl+x, y and Enter.

nadirfly · June 2, 2021, 7:31am

Good morning from Italy … thanks for the great guide!
Now my touch works! : slight_smile:
How can I change the bad display resolution? it’s hard to read what’s written !!

gvolt · June 2, 2021, 7:42am

This display only has a resolution of 480x320. Do you think the shown resolution is actually lower than that? Could you possibly post a picture of the display?

nadirfly · June 2, 2021, 8:48am

if i set the 800x600 px now i see very well but the menu is little andit’s difficult to use whit touch!

gvolt · June 2, 2021, 8:52am

I guess that’s what to expect if the physical resolution is just 480x300.

nadirfly · June 2, 2021, 8:53am

nadirfly · June 2, 2021, 8:55am

Of course but why on this display whit same resolution there s difference?

gvolt · June 2, 2021, 8:58am

Hm, I don’t have a 3.5 inch display with a resolution of 480x320 to compare but in the pictures everything looks normal to me. Maybe try out the classical UI theme.

gvolt · June 2, 2021, 8:58am

Do you have a picture that shows the difference you are referring to?

nadirfly · June 2, 2021, 9:03am

i’m sorry … no! but if i want enlarge the font text into css where i can go?

gvolt · June 2, 2021, 9:05am

I have no clue. I don’t tinker with the .css files, but you probably can get help in the thread Contemporary optimizations plugin for local connected displays where you already have posted.

nadirfly · June 2, 2021, 9:33am

Thenk you for help!

nadirfly · June 2, 2021, 10:04am

This is the resolution of i set 480x320px

gvolt · June 2, 2021, 10:14am

Yes, doesn’t look nice. With your other 3.5 inch display it was looking better (when resolution was also set to 480x320)?

nadirfly · June 2, 2021, 10:22am

i think of yes… but other display has not HDMI and i installed this script.
install_3.5_screen-270.sh

gvolt · June 2, 2021, 10:25am

What is the content of that script? Do you have a link?