Ahh. A Pinebook. Which one? If I remember right the Pinebooks are ARM processors simlar to mobile phones. So all the software you install on them must be specifically compiled for ARM processors. Which means you cant just run anything on them. An app may install but it will not work. I'm impressed you got Mint on it because the Mint team do not produce an ARM version, lol. So I'm guessing that it is not specifically for the Pinebook is the underlying problem including the keyboard issues.