Hello, hopefully someone can help me out with this very confusing issue
A few days ago I noticed my wall-mounted display saying that “192.168.4.xxx” could not be reached" and just got around to looking into it (Mainly because I tried to turn a light on and couldn’t). The Raspberry Pi 3b I have Home Assistant running on was not connected to my network (per the Eero app) and did not display anything to my monitor, so I cut power, waited a bit, and started it back up again.
Here’s where things start to get weird. The Pi refuses to output anything to my monitor over HDMI and refuses to connect to the network.
Unplugging the HDMI cable and plugging it back in triggers the “No Signal” message on my monitor, so power must be going through, but nothing else.
I have not updated nor installed anything in the past month, and I don’t believe I have made any configuration changes for a few weeks.
The network / CAT5 cable works fine (Plugged it into my laptop) and the HDMI cable is the same cable that has always been used with the Pi, the monitor too. I keep the HDMI cable plugged into the monitor all the time and just switch the monitor input from my PC to the Pi whenever I need it.
I have absolutely no clue how to go about troubleshooting this as there is no HDMI output (So no CLI) and no network connection (So no SSH).
Here are my few troubleshooting steps:
- Test CAT5 (As described above)
- Power cycle
- Remove ZigBee dongle
- Allow time to boot without HDMI, then plug-in HDMI
- Uncomment
hdmi_safe=1inconfig.txt - Uncomment
config_hdmi_boost=4inconfig.txt
None of those attempts changed anything
Very similar to this persons issue, except I don’t have Nabu Casa: Support needed: Home Assistant stopped working and cannot connect via App or Chrome - #4 by Hypercube
Here is the backup.json file I have from my last backup (Thankfully I have external backups configured):
{"slug":"937dde36","version":2,"name":"2024-11-01 00:00:01","date":"2024-11-01T05:00:01.191415+00:00","type":"full","supervisor_version":"2024.10.3","homeassistant":{"version":"2024.6.3","exclude_database":false,"size":0.0},"addons":[{"slug":"core_configurator","name":"File editor","version":"5.8.0","size":0.0},{"slug":"core_ssh","name":"Terminal & SSH","version":"9.14.0","size":0.0},{"slug":"a0d7b954_aircast","name":"AirCast","version":"4.2.2","size":0.0},{"slug":"fe49a976_google_assistant_webserver","name":"Google Assistant Webserver","version":"0.0.4","size":0.0},{"slug":"7c966942_emulated_hue","name":"Emulated HUE","version":"0.3.0","size":0.0},{"slug":"core_samba","name":"Samba share","version":"12.3.2","size":0.0},{"slug":"core_duckdns","name":"Duck DNS","version":"1.18.0","size":0.0},{"slug":"core_nginx_proxy","name":"NGINX Home Assistant SSL proxy","version":"3.10.1","size":0.0},{"slug":"cebe7a76_hassio_google_drive_backup","name":"Home Assistant Google Drive Backup","version":"0.112.1","size":0.0},{"slug":"5c53de3b_esphome","name":"ESPHome","version":"2024.9.1","size":0.0},{"slug":"core_matter_server","name":"Matter Server","version":"6.5.1","size":0.0},{"slug":"core_mosquitto","name":"Mosquitto broker","version":"6.4.1","size":0.0},{"slug":"45df7312_zigbee2mqtt","name":"Zigbee2MQTT","version":"1.40.1-1","size":0.0}],"compressed":true,"docker":{"registries":{}},"folders":["share","addons/local","ssl","media"],"protected":false,"repositories":["https://github.com/zigbee2mqtt/hassio-zigbee2mqtt","https://github.com/hass-emulated-hue/hassio-repo","core","https://github.com/Apipa169/Assistant-Relay-for-Hassio","local","https://github.com/esphome/home-assistant-addon","https://github.com/music-assistant/home-assistant-addon","https://github.com/AndBobsYourUncle/hassio-addons","https://github.com/hassio-addons/repository","https://github.com/sabeechen/hassio-google-drive-backup"],"crypto":null}
And I don’t have anything against reverting to it, but don’t know how to import it without re-flashing the SD card and I really don’t want to do that if I don’t have to.
(Also, I am assuming the backup file has everything I need if I do need to wipe it, but would like confirmation on that as well I suppose)
Thank you in advance for anything potentially helpful you can offer!
