NVIDIA: Difference between revisions
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* Pros: out of box experience, just start the game via ''primusrun'' or ''optirun'' wrapper | * Pros: out of box experience, just start the game via ''primusrun'' or ''optirun'' wrapper, works under existing X11 server | ||
* Cons: some performance penalty, no Vulkan support, things like CUDA and OpenCL are problematic to configure | * Cons: some performance penalty, no Vulkan support, things like CUDA and OpenCL are problematic to configure | ||
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=== Nvidia PRIME === | === Nvidia PRIME === | ||
Official solution by nvidia, but needs some preparing. ''' | Official solution by nvidia, but needs some preparing. '''Also you need muxless card''' | ||
'''1.''' Configure NixOS to allow Intel and Nvidia X.Org drivers coexist together (only needed because NixOS forces LD_LIBRARY_PATH variable propagation), and also to disable nvidia card by default. | '''1.''' Configure NixOS to allow Intel and Nvidia X.Org drivers coexist together (only needed because NixOS forces LD_LIBRARY_PATH variable propagation), and also to disable nvidia card by default. | ||
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* Pros: better performance, Vulkan is supported. CUDA and OpenCL should work, though CUDA needs an additional device creation rule https://github.com/NixOS/nixpkgs/blob/05e375d7103ac51e2da917965c37246c99f1ae4f/nixos/modules/hardware/video/nvidia.nix#L72 | * Pros: better performance, Vulkan is supported. CUDA and OpenCL should work, though CUDA needs an additional device creation rule https://github.com/NixOS/nixpkgs/blob/05e375d7103ac51e2da917965c37246c99f1ae4f/nixos/modules/hardware/video/nvidia.nix#L72 | ||
* Cons: there are still some rough edges noted on the top of script, but otherwise it works fine for me | * Cons: there are still some rough edges noted on the top of script, but otherwise it works fine for me, starts new X11 server | ||
== | == non-NixOS case == | ||
The [https://github.com/guibou/nixGL nixGL project] provides wrapper to use GL drivers outside of NixOS. | * GL drivers on non-NixOS: The [https://github.com/guibou/nixGL nixGL project] provides wrapper to use GL drivers outside of NixOS. You need to have nvidia drivers installed on your distro (for kernel modules). Then supply nvidia driver version you use on host system to nixGL. | ||
* [https://github.com/dukzcry/crap/tree/master/primerun Optimus only]. Primerun will build nvidia kernel modules against your currently running kernel. | |||
[[Category:Video]] | [[Category:Video]] | ||
Revision as of 21:03, 20 July 2018
Card type
- MXM / output-providing card (shows as VGA Controller in lspci), i.e. graphics card in desktop computer or in some laptops
- muxless/non-MXM Optimus cards have no display outputs and show as 3D Controller in lspci output, seen in most modern consumer laptops
Non-optimus mode
You need MXM card. Follow NVIDIA Graphics Cards section in official manual.
In case of laptop you may also need to use BIOS option to select which card to use for internal display.
Optimus
There are currently two solutions available under NixOS:
Bumblebee
Unofficial solution, but is easy to set.
Use
hardware.bumblebee.enable = true;
option.
- Pros: out of box experience, just start the game via primusrun or optirun wrapper, works under existing X11 server
- Cons: some performance penalty, no Vulkan support, things like CUDA and OpenCL are problematic to configure
Nvidia PRIME
Official solution by nvidia, but needs some preparing. Also you need muxless card
1. Configure NixOS to allow Intel and Nvidia X.Org drivers coexist together (only needed because NixOS forces LD_LIBRARY_PATH variable propagation), and also to disable nvidia card by default.
/etc/nixos/configuration.nix
{
# disable card with bbswitch by default
hardware.nvidiaOptimus.disable = true;
# install nvidia drivers in addition to intel one
hardware.opengl.extraPackages = [ pkgs.linuxPackages.nvidia_x11.out ];
hardware.opengl.extraPackages32 = [ pkgs_i686.linuxPackages.nvidia_x11.out ];
}
2. Use primerun script for out of box experience.
Like with Bumblebee, start the game via primerun.sh.
- Pros: better performance, Vulkan is supported. CUDA and OpenCL should work, though CUDA needs an additional device creation rule https://github.com/NixOS/nixpkgs/blob/05e375d7103ac51e2da917965c37246c99f1ae4f/nixos/modules/hardware/video/nvidia.nix#L72
- Cons: there are still some rough edges noted on the top of script, but otherwise it works fine for me, starts new X11 server
non-NixOS case
- GL drivers on non-NixOS: The nixGL project provides wrapper to use GL drivers outside of NixOS. You need to have nvidia drivers installed on your distro (for kernel modules). Then supply nvidia driver version you use on host system to nixGL.
- Optimus only. Primerun will build nvidia kernel modules against your currently running kernel.