I have a raspberry pi 3b running in kiosk mode, which had been working for 1 month with no issues. But suddenly it stopped lauching chromium-browser, and the OS is extremely slow. It now takes 15 minutes to load the desktop GUI after restarting, and it no longer starts the browser on boot. My lxsession/LXDE-pi/autostart file has:

@lxpanel --profile LXDE-pi 
@pcmanfm --desktop --profile LXDE-pi 
@xscreensaver -no-splash point-rpi 
@unclutter -idle 0.5
xset s noblank
xset s off
xset -dpms
@python Desktop/flask_local.py
@chromium-browser --kiosk --check-for-update-interval=314536000

When i try to open chromium on terminal with:


It outputs this message:

LibEGL warning: DRI2: failed to authenticate
[0707/161225.621149:ERROR:scoped_ptrace_attach.cc(37)] process not stopped
or (5)
Bus error

The Pi is running the Raspberry Pi OS with desktop and I've configured it to read only mode. Any idea what would be causing it?


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