Yes, coincidentally both my Laptop and my eGPU are Gigabyte. Laptop is Gigabyte Aorus 17G XD and eGPU is Gigabyte RTX 3080 Eagle in Razer Core X Chrome via Thunderbolt 4.
I followed this tutorial: [root tip] [How To] Dual boot Manjaro and Windows
to set up Manjaro to dual boot with Windows 10, in there it was suggested to add new EFI boot partition, nothing about deleting the Windows one (I guess that’s so that windows won’t overwrite GRUB).
So far nothing regarding UEFI is yelling at me (this computer doesn’t even support legacy boot from what I see in BIOS)
Opened the manjaro Hardware configuration and clicked Auto Install Proprietary Driver.
Output of mhwd:
mhwd --listinstalled ✔
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-linux 2018.05.04 true PCI
video-modesetting 2020.01.13 true PCI
video-hybrid-intel-nvidia-prime 2021.07.28 false PCI
Warning: No installed USB configs!
Just for the heck of it I went and attempted to to use Wayland. Even though I couldn’t get my eGPU and external displays to work with I did notice a huge improvement on my dedicated RTX 3070. Could this indicate issue with Xorg?
I’ve configured my xorg like so: https://joplin.sepaurg.eu/shares/7N1MyveO7P2F0bPDcJQQ3mRcPMSVNB19
Optimus Manager generated xorg conf
Section "Files"
ModulePath "/usr/lib/nvidia"
ModulePath "/usr/lib32/nvidia"
ModulePath "/usr/lib32/nvidia/xorg/modules"
ModulePath "/usr/lib32/xorg/modules"
ModulePath "/usr/lib64/nvidia/xorg/modules"
ModulePath "/usr/lib64/nvidia/xorg"
ModulePath "/usr/lib64/xorg/modules"
EndSection
Section "ServerLayout"
Identifier "layout"
Screen 0 "integrated"
Inactive "nvidia"
Option "AllowNVIDIAGPUScreens"
EndSection
Section "Device"
Identifier "integrated"
Driver "modesetting"
BusID "PCI:0:2:0"
Option "DRI" "3"
EndSection
Section "Screen"
Identifier "integrated"
Device "integrated"
Option "AllowExternalGpus"
EndSection
Section "Device"
Identifier "nvidia"
Driver "nvidia"
BusID "PCI:1:0:0"
Option "Coolbits" "28"
EndSection
Section "Screen"
Identifier "nvidia"
Device "nvidia"
EndSection
Here’s a table of framerate comparions from my evening testing with Snowrunner (seems to have the biggest hit)
Framerate Comparisons
| OS | Setting | Resolution | Framerate |
|---|---|---|---|
| Windows | eGPU | 3440x1440 | ~80 FPS |
| Manjaro | Xorg - eGPU | 3440x1440 | ~30 FPS |
| Manjaro | Xorg - eGPU | Multiple resolutions in windowed mode down to 1080p | ~30 FPS |
| Manjaro | Xorg - dGPU Optimus Manager set to NVIDIA | 3440 x 1440 | ~20 FPS |
| Manjaro | Xorg - dGPU Optimus Manager set to Hybrid | 3440 x 1440 | ~30 FPS |
| Manjaro | Xorg - dGPU Optimus Manager set to NVIDIA | Laptop’s 1920 x 1080 | ~30 FPS |
| Manjaro | Xorg - dGPU Optimus Manager set to Hybrid | Laptop’s 1920 x 1080 | ~60 FPS |
| Manjaro | Wayland | Laptop’s 1920 x 1080 | ~80 FPS |