Hi (first post on forum)

Opensuse version installation have quite easily worked in Dell D620 (centrino duo), but now there is some problems with Gnome desktop of Opensuse 15

1) After installation of Gnome: when started, login window has no mouse cursor visible, but navigation works with keyboard so that password can be given and
login is succesful (after login cursor mouse cursor comes visible).
2) After login Gnome desktop is displayed normally, but mouse moves slowly/has lag and pointing defined point on screen is difficult. Checking processor load
shows that both processors run near maximum limit.

In same laptop earlier opensuse 42.3 with Gnome worked well and current opensuse 15 with KDE also works ok.

I try to figure problem cause and search advice from forums earlier.