Raspberry-Pi

failed to open vchiq instance raspbian volumio

If you get an error like “failed to open vchiq instance” you’ll need to do as root: 

    echo 'SUBSYSTEM=="vchiq",GROUP="video",MODE="0660"' > /etc/udev/rules.d/10-vchiq-permissions.rules
    usermod -a -G video [your_username]
  • Or as one time temporary solution (until reboot): 
    chmod a+rw /dev/vchiq