The HDMI output of the Raspberry Pi is only activated if a monitor or television is connected and powered up before the Raspberry Pi is turned on. To correct this – edit the /boot/config.txt file Add the following two lines … Continue reading →
I used vcgencmd inside a script for SNMP and the SNMP query returned: VCHI initialization failed I soon discovered if vcgencmd on a raspberry pi you get VCHI initialization failed then you need to add the video group to that user. … Continue reading →
The following is a primer for setting up your Raspberry PI to use SNMP to monitor the CPU and the GPU temperature in Cacti and to monitor the undervoltage condition. The instructions below cover Raspbian 11. I am assuming you … Continue reading →