Linux mint doesn't open after shutdown

I know it sounds strange but i don't know whats wrong, i am using lenovo legion Y540 and was using mint 19.3 from about a year, 3 days before i updated to ulyana everything seemed fine expect for brightness then when i shutdown it and tried opening in the morning it wasn't switching on i mean i showed lenovo logo and then everything black no log in screen just completely black, had to shutdown by pressing power button, after trying opening a few times it showed up and opened completely fine, it thought it was a one time thing but then next time the same happened. It was working fine with live usb and only problem was not opening after shutdown or restart with was quite a serious issue. I decided to switch back to 19.3 version cause i thought it was due to incompatibility with hardware or something with ulyana. But even after switching to 19.3 the problem was persistent and i even installed 19.3 again just in case it might work but no. I had to switch back to windows and the problem is GONE.. Windows theme is hurting my eyes and policy is hurting my privacy...
I really want to be back with mint i would be great if someone can help solving the problem.....
Thanks in advance