Lubuntu 16.04 LTS blank blue screen when entering lvm decryption password?

Question

linux

Installed lubuntu 16.04 lts
When loading, it asks for a password to decrypt partitions. This screen is just blue, the password and text input field is not visible. Just a blue screen. I enter the password, I press enter - it loads further and further. Tell me where to dig.

Answer 1

At 15.10 everything is ok.