Wait... As for me kdm-3.5.13 parses desktop files
located in the
/usr/share/xsessions/ and displays KDE 4 session as "KDE plasma
workspace".
If r14 doesn't this is a regression.
TDM recognizes /usr/share/xsessions/ in R14 too. I recall I raised
that issue and was part of the testing.
That said, the KDE4 session desktop files are not installed in
/usr/share/xsessions/. They are installed in
/usr/share/apps/kdm/sessions/, which is why TDM does not find the
files. :)
Darrell