Timothy Murphy wrote:
What is the point of these two applications? What does the kde version add?
KDE integration.
(In my case, when I run it, I am not asked for the root password, and most of the possible actions are greyed-out.)
That is a bug. Looks like it doesn't support the PolicyKit integration in system-config-printer properly. Are you running Rawhide or F11?
I don't understand the relation - if any - of hplib to CUPS.
hplip is a driver for CUPS (and SANE for the scanner part of multifunction printers), and a set of some additional, HP-specific tools.
Can one install both without problems?
Yes, you even need CUPS to use hplip.
Kevin Kofler