Stop keyboard after emerge

hi, yesterday i,ve switched from Python 2 to 3 and upgraded all packages
with emerge -uDn --changed-use @world.

After this keyboard (mouse ok) works only to console and not GUI

I've emerged the xorg drivers, rebuild module, evdev, and all xorg.

I use xorg 1.16 with gnome 3.14 and systemd.

Thanks in advance