i did this: sudo dpkg-reconfigure -phigh xserver-xorg
but in effect i lost russian layout
i cant switch in russian on keyboard as usual : Alt+Shift
and no other hot key is working. by clicking on language ikon in tray i get option keyboard layout gray - not available.
btw videocard is workin a little bit slower that before.
may be i should run ENVY and reinstall nvidia driver?