i tried to learn my model one more time and my laptop crashed again. So, then i turned it on, nvidia driver appear that there isn’t GPU card in my laptop. I was frustrated. I switched  my OS to win10 and tested GPU unit on it. GPU unit worked fine and benchmark FurMark shown good score.
OK, i switched again on Linux Mint and driver problem disappeared (magic!), but i can’t use gpu memory, then i run pyrotch script that worked fine before! It calls unknown error with pytorch.
What the hell is doing there?
Please, help me.
update: FurMark shown good score on Linux Mint too. It’s not a driver problem i guess.
Best regards,
Alex.