Kali Linux can't boot into gui

I was trying to configure my Nvidia gsync as I heard online that this stops some flickering issues I was having with a game, I edited a config file to enable this and then rebooted and then it refused to boot into gui mode, I reset the config file to it's default and still nothing. I've tried quite a few different things such as resting gdm and starting gdm, using lightdm and restarting but all don't work. I've tried reinstalling my Nvidia drivers but nothing. I try using startx but it just hangs, all I can do is boot into cml

It's going to be a bit annoying to get any command output as I wouldn't know how to edit a stack question on cml, and copying onto my phone may be a pain but if necessary I will do

Just to note I have had Linux working for about a week and a half and nothing like this has happened before

EDIT 1:I've run the command cat var/log/Xorg.0.log | grep EE

And found nothing, but when EE was replaced with WW I found something that seemed suspicious

[124.606] (WW) NVIDIA(0): Unable to get display device for DPI computation

While this may be completely benign, I'm unsure so I will look into it