I was able to read via VNC.
The chromium-package is installed via dietpi-software.
I solved it now. The problem was the internal blocklist of chrome. Here is my solution, i have a config file, where i can switch GPU on or off…
if [ ${FORCE_GPU} ]; then
CHROMIUM_OPTS="${CHROMIUM_OPTS} --ignore-gpu-blocklist"
fi
# GPU Settings
CHROMIUM_OPTS="${CHROMIUM_OPTS} --enable-gpu --use-gl=egl --enable-unsafe-webgpu --enable-gpu-rasterization"
# Enable smooth scrolling animation
CHROMIUM_OPTS="${CHROMIUM_OPTS} --enable-smooth-scrolling"
# Suppresses Error dialogs
CHROMIUM_OPTS="${CHROMIUM_OPTS} --noerrdialogs"
# Window Settings
CHROMIUM_OPTS="${CHROMIUM_OPTS} --window-size=${RES_X:-1280},${RES_Y:-720} --window-position=0,0"
# COLOR Parameters
CHROMIUM_OPTS="${CHROMIUM_OPTS} --cast-app-background-color=44afe2ff --default-background-color=44afe2ff"
# KIOSK Parameters
CHROMIUM_OPTS="${CHROMIUM_OPTS} --kiosk --start-fullscreen --start-maximized"
# CACHE Parameters 128MB
CHROMIUM_OPTS="${CHROMIUM_OPTS} --disk-cache-dir=/home/dietpi/.mupibox/chromium_cache --disk-cache-size=134217728"```