I've used xterm as a terminal emulator for years, but I've
been trying out konsole recently.

I'm running PCLinuxOS/KDE.

konsole --version reports:

Qt: 4.8.2
KDE Development Platform: 4.9.2
Konsole: 2.9.2


In an open konsole (or xterm, or any terminal emulator), if I run

/usr/bin/konsole

a new konsole will pop up, but I will get these 2 lines of
output in the window in which I ran konsole:

QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.

Are these messages a concern? How can I fix them?

I'm also observing some other problems I can't explain, but they may symptoms
of whatever is causing the above warning.

konsole --help-kde describes (in addition to others) the --geometry
and --caption arguments. I can't get either of those options to do anything.

For example, I tried:

konsole --caption "APPLES" --geometry 150x60+200+10

and I the konsole that pops up does not have a title of APPLES and
the geometry is not 150x60. The only other kde/konsole option I
really understood was --nofork, and I was able to verify that
it does work.

Why do these options seems to have no effect?

The QDBusConnection messages are purely warnings and can be safely ignored.

If I am correct I believe there was a regression in kdelibs which broke --geometry, and --caption is likely overridden/broken in Konsole by the automatic title setting based on the currently active tab.