I spent a lot of time trying to understand why Netdata wouldn't show my Raspberry Pi temperature while that was working without any problem on my Lenovo running Ubuntu.
Simple answer : you need to edit
charts.d.conf but not the one in
/etc/netdata but the one in
/usr/lib/netdata/conf.d instead and add
If you're lazy, maybe
echo sensors=force >> /usr/lib/netdata/conf.d/charts.d.conf can do.
It's as simple as that.
$ sudo systemctl restart netdata afterwards.