If you have plasma installed you already have x11 installed, so you should be able to switch to an x11 session on login even if just to test this without having to install anything else
- signed, someone who has spent an embarrassing amount of hours trying to find a way to remove x11 dependence from my system
Why the dkms version on arch? iirc the wiki recommends not using it, and from personal experience I’d take the pacman version over dkms any day. If there’s any compatibility differences I’m not aware of them, and ime the stability is way better with the pacman version (tho I’ve never used the same driver versions on both, so take that with a grain of salt). I’d bet nouveau is way more likely to solve your issue, but if you want to keep native performance too maybe try nvidia-open rather than dkms