Intel ARC B580 eGPU on Razer Core

[cement-head]

System76 DarterPro (darp10-b) running Pop!_OS 22.04 LTS
Kernel 6.12
MESA 24.8

Had to make a custom X11-template.conf file:

x11-template.conf.txt

MESA/OpenGL is being rendered on the BMG card and outputed to the primary laptop screen (via TB3 cable)

$ inxi -G
Graphics:
Device-1: Intel driver: i915 v: kernel
Device-2: Intel driver: xe v: kernel
Device-3: Chicony USB2.0 Camera type: USB driver: uvcvideo
Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: modesetting
unloaded: fbdev,vesa gpu: i915 resolution: 1920x120060Hz
OpenGL: renderer: Mesa Intel Graphics (BMG G21)
v: 4.6 Mesa 24.2.8-1bpo12+1pop1174422582622.04~b077665