Hi,
Since a few days, i don’t understand why i don’t manage to active the display of my lcd screen on my raspberry 3b+… (rpi 3.5 / 480*320)
In fact, after two days searching for the way, i succeeded … unfortunately, my SD card burned out before i made an img. And now, i am not able to reproduce the solution.
Here are the steps i did :
git clone https://github.com/goodtft/LCD-show
cd LCD-show/
sudo mkdir /etc/X11/xorg.conf.d
cd usr/
sudo cp tft35a-overlay.dtb /boot/overlays/
sudo cp LCD-show/usr/tft35a-overlay.dtb /boot/overlays/tft35a.dtbo
sudo cp -rf 99-calibration.conf-35-0 /etc/X11/xorg.conf.d/99-calibration.conf
sudo mkdir -p /usr/share/X11/xorg.conf.d/
sudo cp -rf 99-fbturbo.conf /usr/share/X11/xorg.conf.d/99-fbturbo.conf
sudo nano /etc/X11/xorg.conf.d/99-calibration.conf
entering this :
Section “InputClass”
Identifier “calibration”
MatchProduct “ADS7846 Touchscreen”
Option “Calibration” “268 3880 3936 227” (this is what used to work in the good last try)
Option “SwapAxes” “0”
Driver “evdev”
EndSection
my config.txt (i tried a few codes, i think that the problem is here) :
initramfs volumio.initrd
gpu_mem=32
max_usb_current=1
dtparam=audio=on
audio_pwm_mode=2
dtparam=i2c_arm=on
disable_splash=1
hdmi_force_hotplug=0
force_eeprom_read=0
enable_dpi_lcd=1
display_default_lcd=1
dpi_group=2
dpi_mode=87
dtoverlay=tft35a
include userconfig.txt
my userconfig.txt :
dtparam=spi=on
dtoverlay=tft35a
sudo apt update
sudo apt install lightdm
sudo apt install xserver-xorg-input-evdev
sudo cp -rf /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/45-evdev.conf
sudo nano /usr/share/X11/xorg.conf.d/99-fbturbo.conf
I changed Driver “fbturbo” to Driver “fbdev” and enter the fb1 option
then
systemctl status volumio-kiosk (was inactive)
systemctl start volumio-kiosk
Have an idea ?
Thanks a lot.