KDE not starting

Hi, This morning when I botted my laptop (Dell G15) and the login didn' appear, just the mouse arrow. I thougt it was a sddm problem so I switched to gdm and it worked and Gnome started but not KDE(X11), not even with a new user. I installed LXDE and that too worked without problems but it gave me an error about KDEconnect(crashed) and the same when I tried to start Konsole, while the LXDE terminal works. Journalctl reports a lot of kdesomething that dumped core,the first seems to be kdeconnect... It seems that KDE is, for some reason hosed. Is it possible to do a reinstall of KDE or reinstalling F34 is the only solution. GiP -- GianPiero Puccioni |Istituto dei Sistemi Complessi-CNR gianpiero.puccioni(a)isc.cnr.it |Via Madonna del Piano, 10 T:+39 0555226682 |50019 Sesto F. (Firenze) ITALY