Greetings,
This is fresh install from manjaro-architect-20.0.3-200607-linux56.iso, opting for KDE and proprietary drivers.
Mostly works fine. A typical use case is to use an external monitor, and no laptop screen - and in this mode it is unusable.
If you open the lid, and use both displays, it’s fine.
If you change the display settings to disable the laptop screen, its bad again.
laptop screen alone is fine, both together is fine, external monitor by itself is unusable (looks ok, just slooooow).
I will add that cold install from ubuntu-20.04.1 yields a working configuration, so the hardware is viable.
Thanks, Clay
$ inxi -G
Graphics: Device-1: Intel UHD Graphics 630 driver: i915 v: kernel
Device-2: NVIDIA TU104GLM [Quadro RTX 4000 Mobile / Max-Q] driver: nvidia v: 455.38
Device-3: Sunplus Innovation Integrated_Webcam_HD type: USB driver: uvcvideo
Display: x11 server: X.Org 1.20.9 driver: modesetting,nvidia resolution: 1: 3840x2160 2: 3840x2160~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 20.2.1
{gni}marfa:/d/gni/ace2$ mhwd -li
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-455xx-prime 2020.10.04 false PCI
video-modesetting 2020.01.13 true PCI
Warning: No installed USB configs!