Since i installed KDE 4.* Whenever I go to shutdown, I get the shutdown dialogue, I hit shutdown, it logs me off, shows some text on shutdown screen, and then opens up the GUI again, bringing up a small window, where It asks for the root password, in order to shutdown. If i don’t give it the root password, it goes to the login screen.
I cannot, any way, command line, GUI, or anything, shutdown without providing a root password.
If I use the command shutdown now, as root, it logs me off and goes through an endless cycle of logging off, and then asking for root to shut down, and not shutting down (All on the CLI), and everytime i give it the password, it cancels shutdown and goes back to the prompt. I eventually have to pull the battery to kill it in that case…
I have tried chmoding the shutdown scripts to make it work, it doesn’t.
There is a place for you to specify that you or any user you specify has right to shutdown system. But I suspect something else is wrong. Have you tried open terminal as superuser, give password, and issue ‘shutdown -h now’? If this doesn’t work you have something really wrong, if it works then something in settings or KDE is at fault.