But some keen eyed users might notice that their GPU could be running at PCI-E 1.1 speeds instead of PCI-E 3.0 speeds. But I've found no way to make Wayland (Gnome/KDE) run entirely on the eGPU Ensuring your AMD eGPU runs at its peak speedĮGPUs might seem to work well enough out of the box (except for X reconfiguratoion). The eGPU can typically be used under Wayland with no extra configuration by adding DRI_PRIME=1 before the application you're running. In the case of both KDE and Gnome, this can be selected at their login screen. Alternatively do what I do, only use X when connected to the eGPU, and use Wayland otherwise. Unfortunately I do not have a script for this currently, but there are plenty of others online. X will only start with the eGPU present, to use it handheld you will need to remove or comment out this config file. When you start X, it will run exclusively on the eGPU for max performance. You will now need to create the file /etc/X11//nf and add the following content for an AMD GPU: Section 'Device'īusID 'PCI:06:00:0' # Replace with your PCI-E idĪnd the following for an Nvidia GPU: Section 'Device'

The Arch wiki is a great resource for further details on setting up eGPUs. For example if lspci shows 0a:00.0 that would be converted to 10:00.0. Be aware that lspci displays in hexadecimal, while you need decimal, so you might need to convert. My GPU shows up as this line: 06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. You can find this by running sudo lspci in a terminal (sudo not always needed). To make the X server run on the eGPU, you will need to put a little snippet in /etc/X11/ telling it which GPU to use.įirst you will need the PCI-E address of your eGPU. Ensure your AMD eGPU is running at its peak speed (All AMD eGPU readers should check this part).Run your X server directly on the eGPU to minimize the amount of data passed back and forth.However, to optimize performance, especially over a Thunderbolt link there's two things you'll want to fix: Plug them in and use DRI_PRIME=1 to offload graphics to the eGPU, maybe a reboot is needed. Tested with a Razer Core X Mercury and an AMD RX 580 4GB and RX 6700 XT 12GB.ĮGPUs are mostly plug and play.

Egpu display driver failed to load