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Option "AllowExternalGpus" "True" # Required for proprietary NVIDIA driver. etc/X11//nf Section "Device"īusID "PCI:26:16:3" # Edit according to lspci, translate from hex to decimal. Use Xorg configuration snippet like this one: Offloading Graphics Display with RandR 1.4.
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#External gpu enclosure pci driver
Also documented in NVIDIA driver docs Chapter 33. Main articles are PRIME#Discrete card as primary GPU and PRIME#Reverse PRIME. Monitors attached to eGPU work out-of-the-box, PRIME display offload can be used for monitors attached to iGPU (i.e.Xorg only starts with the eGPU plugged in.Most programs that make use of GPU run out-of-the-box on eGPU: glxinfo/ glxgears, eglinfo/ eglgears_x11, NVENC/ NVDEC (including OpenGL interop).Xorg rendered on eGPU, PRIME display offload to iGPU Multiple setups combining internal (iGPU) and external (eGPU) cards are possible, each with own advantages and disadvantages. On Nvidia, active nvidia-persistenced is expected to prevent clean hot-unplug.
#External gpu enclosure pci drivers
Hot-unplug should be also possible (probably depending on drivers used). This use-case should also support full hotplug. Proprietary Nvidia NVENC/NVDEC should work (without OpenGL interop). nvidia-smi utility should work with the proprietary NVIDIA driver. Right after completing installation steps, compute-only workloads like GPGPU#CUDA that do not need to display anything should work without any extra configuration. Kernel modules: nouveau, nvidia_drm, nvidia If installed successfully, lspci -k should show that a driver has been associated with your card:ġa:10.3 VGA compatible controller: NVIDIA Corporation GP107 (rev a1) # dmesg | grep PCIe pci 0000:1a:10.3: 8.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s PCIe x4 link at 0000:05:01.0 (capable of 126.016 Gb/s with 8.0 GT/s PCIe x16 link)Ī driver compatible with your GPU model should be installed: $ lspci | grep -E 'VGA|3D' 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) # internal GPUġa:10.3 VGA compatible controller: NVIDIA Corporation GP107 (rev a1) # external GPUĭepending on your computer, its firmware and enclosure firmware, Thunderbolt will limit host eGPU bandwidth to some extent due to the number of PCIe lanes and OPI Mode: If successful, the external graphics card should show up in lspci: Follow Thunderbolt#User device authorization. The eGPU enclosure Thunderbolt device may need to be authorized first after plugging in (based on your BIOS/UEFI Firmware configuration).