When I click on KVT icon, KDE run programs: konsole (empty window, no
prompt) and in the second window the kvt terminal. It seems that konsole
start and immediatelly finish when KDE environment start.
This problem is in kdebase-1.1.2-24, kdebase-1.1.2-10 does not have this
problem so this seems to be a problem with additional patches in package.
Fixed in kdebase in rawhide.