I don't know of any way to make this work with the package from 17.10 / Artful, but installing the current 1.2.6-1 xfce4-sensors-plugin from 17.04 / Zesty makes the plugin work. No other changes were needed. With the plugin from Zesty the plugin output on the panel immediately changes when I change settings. I got it from: https://packages.ubuntu.com/zesty/amd64/xfce4-sensors-plugin/download
I don't know of any way to make this work with the package from 17.10 / Artful, but installing the current 1.2.6-1 xfce4-sensors- plugin from 17.04 / Zesty makes the plugin work. No other changes were needed. With the plugin from Zesty the plugin output on the panel immediately changes when I change settings. I got it from: https:/ /packages. ubuntu. com/zesty/ amd64/xfce4- sensors- plugin/ download