Ah, sorry, I didn't know you weren't using GNOME. The gnome-settings-
daemon part is not essential at all: the idea was only to use the PID of
a process that is known to be running - you can use any program name
here.
The polkitd log contains the explanation to your problem:
** (polkitd:1592):
The current user, who happens to be the only user on that system, *is*
shown in the list, and is selected. The Add, Delete, and Advanced
Settings buttons don't work, and, as I neglected to mention, the
Change... buttons for the user's full name and account type don't work
either. But the Change...
** Attachment added: users-admin changing a password
https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/685596/+attachment/1756686/+files/users-admin-change-password.png
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So it sounds like a PolicyKit issue. Please run
sudo killall polkitd; sudo /usr/lib/policykit-1/polkitd
start users-admin, and click on a button that doesn't work. Then please attach
the output here.
What happens if you run
export PID=`pidof gnome-settings-daemon`
pkcheck --action-id
I ran users-admin from a console, clicked Add, Delete, and Advanced
Settings and waited five minutes. During that time, no messages were
printed to the command line. I checked that before restarting polkitd
and inspecting its output -- did you want me to check and see if polkitd
produces
For clarification: While capturing the output of polkitd, I clicked the
Add button once, quit users-admin, and then quit polkitd (Ctrl+C).
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So, I installed gnome-settings-daemon and ran it, and the problem
persisted. Furthermore, I have another i386 Natty system that runs a
full Ubuntu desktop. On that other system, users-admin works without
problems, and gnome-settings-daemon is installed and runs all the time.
So I tried killing