Hi.
I had a problem on my own MacBook Pro 2015.
After getting out of sleep and login Mac starts to work very slowly and slow down to no reaction, next white noise on screen, and it come back to login page. The touchpad works but the system does not respond.
After again white noise and Mac reboot.
This has already happened several times. But after slow work I saw only one white noise screen and the computer restarted.
Maybe someone knows what is best to do with it. Thanks
sorry about horizontal video 
MacBook Pro (Retina, 13-inch, Early 2015)
Mojave 10.14.2 (18C54)
I had a problem on my own MacBook Pro 2015.
After getting out of sleep and login Mac starts to work very slowly and slow down to no reaction, next white noise on screen, and it come back to login page. The touchpad works but the system does not respond.
After again white noise and Mac reboot.
This has already happened several times. But after slow work I saw only one white noise screen and the computer restarted.
Maybe someone knows what is best to do with it. Thanks
Mojave 10.14.2 (18C54)