Version: (using KDE KDE 3.5.5) Installed from: SuSE RPMs I run kcontrol as a user -> printer module -> start printer -> authentication dialog shows up. I enter root and root password but this is not accepted.
Does kdesu (the root password authorization dialog) work in any other kde applications?
Yes, it works fine. Btw. the printer dialog shows something similar, but it is not kdesu for sure.
Try the same in the CUPS web interface at http://localhost:631. Does it work?
No, it does not work.
Then your problem is a CUPS configuration problem. Try to look at CUPS documentation and your config file (/etc/cups/cupsd.conf).
Thanks, Michael!