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147 lines
4.3 KiB
Markdown
147 lines
4.3 KiB
Markdown
---
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How to make Proton work with PRIME
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---
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# Setup
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## Context
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PRIME is a technology that allows one GPU to perform graphics rendering and
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another GPU to display the result on the screen.
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This document assumes that PRIME / GPU offloading is configured and working
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for native software and will touch only on things specific to Proton.
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If you need help with configuring PRIME in the first place you may find the
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following resources useful:
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* https://wiki.archlinux.org/index.php/PRIME
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* https://wiki.debian.org/NVIDIA%20Optimus
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## DirectX 9, 10, 11 and 12 (DXVK and VKD3D-Proton)
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The implementations of those graphics APIs are built on top of Vulkan and
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**most of the games should work out of the box.** Discrete GPUs are
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prioritized (i.e. enumerated first) and games should default to them.
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If you have multiple discrete GPUs or the wrong GPU is selected as the
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default one and the game doesn't have the means of selecting an adapter you
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can limit what gets enumerated.
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In Steam, set your game's Properties -> GENERAL -> LAUNCH OPTIONS to:
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DXVK_FILTER_DEVICE_NAME="GTX 1650" %command%
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This should work for GeForce GTX 1650. A different name may be required for
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your particular graphics card (e.g. "VEGA10" for Vega 56/64). You can use
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`vulkaninfo` program (usually packaged as `vulkan-tools`) to check the names
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of your GPUs.
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## DirectX 8 and OpenGL
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Those APIs are implemented on top of OpenGL and require a bit more
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configuration.
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The two most common PRIME scenarios are covered, but the content should be
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enough to troubleshoot and make any other configuration work.
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### AMD -> Integrated Intel (Mesa -> Mesa)
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In Steam, set your game's Properties -> GENERAL -> LAUNCH OPTIONS to:
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DRI_PRIME=1 %command%
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### Nvidia -> Integrated Intel (Nvidia's Proprietary Driver -> Mesa)
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In Steam set your game's Properties -> GENERAL -> LAUNCH OPTIONS to:
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__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia %command%
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## Vulkan
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In case Vulkan games don't allow you to select a GPU or you experience
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problems with graphics APIs implemented on top of Vulkan you can limit or
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alter the GPU selection.
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### AMD -> Integrated Intel (Mesa -> Mesa)
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In Steam, set your game's Properties -> GENERAL -> LAUNCH OPTIONS to:
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DRI_PRIME=1 %command%
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This will cause the devices to change order, i.e. the first GPU will swap
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places with another one.
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You can also limit the selection using Mesa's DEVICE_SELECT Vulkan layer. To
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list the GPUs:
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$ MESA_VK_DEVICE_SELECT=list vulkaninfo
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selectable devices:
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GPU 0: 1002:67df "AMD RADV POLARIS10 (ACO)" discrete GPU 0000:01:00.0
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GPU 1: 8086:412 "Intel(R) HD Graphics 4600 (HSW GT2)" integrated GPU 0000:00:02.0
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Then set the launch options using one of the vendor and product ids, e.g.:
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DRI_PRIME=1 MESA_VK_DEVICE_SELECT=1002:67df $command%
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### Nvidia -> Integrated Intel (Nvidia's Proprietary Driver -> Mesa)
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In Steam set your game's Properties -> GENERAL -> LAUNCH OPTIONS to:
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__NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only %command%
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This will load the Optimus Vulkan layer and use it to limit the GPU selection
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to NVIDIA only. Using `non_NVIDIA_only` will do the opposite.
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# Troubleshooting
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## Performance
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Having vsync enabled in-game is known to cause problems in PRIME
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configurations. If you experience poor framerates / freezes try disabling
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vsync.
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## Device selection
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To make sure that all libraries have selected the correct GPU you can check
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the logs.
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In the game's properties set the following 'LAUNCH OPTIONS':
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PROTON_LOG=1 WINEDEBUG=+d3d VKD3D_DEBUG=trace
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After running the game, you should find a file named `steam-$APPID.log` in your
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Home directory.
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For wined3d/DXGI, look for:
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```
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trace:d3d:wined3d_adapter_init_gl_caps GL_RENDERER: "Radeon RX 580 Series (POLARIS10, DRM 3.40.0, 5.10.9-zen1-1-zen, LLVM 11.0.1)".
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```
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For DXVK, look for:
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```
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info: DXVK: v1.7.3-36-g85c70ad5
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...
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info: AMD RADV POLARIS10 (ACO):
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info: Driver: 20.3.3
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info: Vulkan: 1.2.145
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```
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For VKD3D-Proton, look for:
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```
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trace:vkd3d_trace_physical_device_properties: Device name: AMD RADV POLARIS10 (ACO).
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trace:vkd3d_trace_physical_device_properties: Vendor ID: 0x1002, Device ID: 0x67df.
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```
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Refer to the main README and each project's own documentation for more details
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on logging. Extra logging can destroy game performance. Make sure that you
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clear your 'LAUNCH OPTIONS' after troubleshooting.
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