Comment 3 for bug 615591

My synaptic reports hddtemp as installed, and no such thing as devkit-disks.
(Once again, that is on my system, I do not know about the original reporter)

Now, looking for devicekit-disks-doc, I found a transitional package for udisks-doc, and in fact udisks itself (not the doc) is also installed. Would you suggest to uninstall udisks ? (is that safe ?)

From the Preferences of the applet, the "Capteur" is from hddtemp (while the graphic part is from nvidia).