SDDM & KDE Plasma DE not starting

I updated a while back and after rebooting I was greeted with a black screen because of no SDDM being started properly. Naturally I dropped to a virtual terminal session and starting troubleshooting. I reinstalled SDDM, Plasma & graphics driver, no change. I can load lightdm with startx but it has issues. I'm not familiar with the location of SDDM logs and how to get information from it, how do I proceed from here?