New Dell tower with tons of juice has constantly lagging screens

[Kobold]

@wutzvill

I’ve tried to downgrade my kernel, but it seems that Manjaro has removed this ability from the settings menu, for idk what reason.

Strange… not for my Manjaro KDE PC and Laptop, Manjaro settings Manager is right there.

Edit:
This is a Laptop what you are using, right?
1.Switching between X11 and Wayland maybe change something.
2.I have no experience with dual GPU’s, maybe it helps to disable your Intel iGPU, if you don’t care about the additional power draw.
3.There are additional commands to improve Wayland Performance under KDE, always check “Known Issues and Solution” if you encounter a problem:

@philm

If you encouter a black screen with no inteface after login in, it’s probably a problem with simpledrm loading.

To solve it add nvidia_drm.fbdev=1 to /etc/default/grub
in the line begining with GRUB_CMDLINE_LINUX=" .
Verify that you also have nvidia_drm.modeset=1 in the same line.
Then exec sudo update-grub

Also, verify that you have nvidia_drm in /etc/mkinitcpio.conf in the MODULES= or HOOKS= line.
Exemple :

MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)

If it was not present, then run sudo mkinitcpio -P after adding it.