Vega M GL graphics disappeared

Hello,

I have an XPS 9575 with an i7-8705g and Vega M GL graphics. They were working fine until recently, where the Vega graphics have disappeared completely from my system. There is no driver for it, and when I try to manually install the driver, I get "...no AMD graphics hardware has been detected in your system configuration..."

Mind you, it was working fine for years. Instead, I only have the Intel HD graphics accessible.