I have Opnsense OPNsense 25.7.11_2-amd64 installed on two different mini-pcs, on one the temperatures are clearly visible and posted inside a green box on the other the text is white on white background and barely visible, plus the temperature is way off (.1C). Should be near to 34 deg C since it is a fanless unit. I am using Opnsense-Dark theme on both units, they are different brands but both Intel based. Searches for the thermal sensor problem appear to be a little dated, I am using a current version of Opnsense so hopefully someone has an idea of a fix.--Thanks.
What sensor source are you using? "System: Settings: Miscellaneous" -> "Thermal Sensors". Sensors under FreeBSD are pretty limited; some devices export good ACPI data, some don't.
Yep I am using the one in the list Intel Core CPU on die, looks like my only choice. It works on my other build but not this one. Of course this is a different board, so the driver may be useless.--Thanks
"None/ACPI" may be worth a try. I have a Gigabyte board that exports a bunch of sensors via ACPI, including some from add-in cards; my Asrock boards do not.
None/ACPI means "ACPI only" - but ACPI is included on top of both the AMD and Intel core temp sensors, so if there is nothing shown with either one enabled, there will still be nothing with None/ACPI.