I posted a problem of authentication for my hard drive at What does this authentication after login in LXDE mean?
I found someone said the problem was caused by lm-sensors which uses udisks2
It's caused by lm-sensors. Click on the thermometer indicator (which is lm-sensors) -> Preferences -> Providers -> Then untick 'Enable support of udisks2'. That seems to make it go away. It probably is still a configuration type bug, but I'm not sure if I really need the udisks2 reading for what I use lm-sensors for. Hope this helps!
I followed the advice, and opened the thermometer indicator (which is lm-sensors) -> Preferences -> Providers. I unticked
Enable support of udisks2, and because I would like to check my hard drive temperature, I ticked
Enable support for hddtemp daemon.
To understand what I was doing, I found https://wpitchoune.net/psensor/faq.html
For hard disk drives, psensor can use:
udisks2: added since 1.1.2 release. It is the default and recommended provider.
hddtemp: verify that it is correctly reporting temperature by using the command: sudo hddtemp /dev/sda. It is the default provider until 1.1.2 release.
atasmart library: before the 1.1.2 release it can be enabled by using the command line option --use-libatasmart.
How are hddtemp, udisks2 and libatasmart compared to each other? Do I miss something if I tick hddtemp and untick udisks2?