Description
I am having some trouble with setting up PRIME sync with my Nvidia eGPU. It seems that the regex for the PCI bus id is not equipped to handle an alphanumeric ID (all examples show pci@0000:01:00.0 style IDs but mine is pci@0000:2d:00.0)
Setup
-
NixOS stable (23.05)
-
Framework 13 (i7-1260P)
-
Akitio Node Titan eGPU enclosure
-
Nvidia 1070ti GPU
Example from Nvidia - NixOS Wiki
*-display
description: i915drmfb
physical id: 0
bus info: pci@0000:01:00.0
logical name: /dev/fb0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom fb
configuration: depth=32 driver=nvidia latency=0 mode=2560x1600 visual=truecolor xres=2560 yres=1600
resources: iomemory:600-5ff iomemory:620-61f irq:220 memory:85000000-85ffffff memory:6000000000-61ffffffff memory:6200000000-6201ffffff ioport:5000(size=128) memory:86000000-8607ffff
*-display
product: i915drmfb
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 resolution=2560,1600
resources: iomemory:620-61f iomemory:400-3ff irq:221 memory:622e000000-622effffff memory:4000000000-400fffffff ioport:6000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
My output of lshw -c display
*-display
description: i915drmfb
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 0c
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 mode=2256x1504 visual=truecolor xres=2256 yres=1504
resources: iomemory:600-5ff iomemory:400-3ff irq:128 memory:605c000000-605cffffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
*-display UNCLAIMED
physical id: 0
bus info: pci@0000:2d:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: iomemory:410-40f iomemory:410-40f memory:6e000000-6effffff memory:4100000000-410fffffff memory:4110000000-4111ffffff ioport:8000(size=128) memory:6f000000-6f07ffff
My Config
{ config, lib, pkgs, modulesPath, ... }:
{
hardware.nvidia = {
modesetting.enable = true;
powerManagement.enable = false;
powerManagement.finegrained = false;
open = true;
package = config.boot.kernelPackages.nvidiaPackages.stable;
prime = {
sync.enable = true;
intelBusId = "PCI:00:02:0";
nvidiaBusId = "PCI:2d:00:0";
};
};
}
Error
building Nix...
building the system configuration...
error: A definition for option `hardware.nvidia.prime.nvidiaBusId' is not of type `string matching the pattern ([[:print:]]+[:@][0-9]{1,3}:[0-9]{1,2}:[0-9])?'. Definition values:
- In `/etc/nixos/gpu.nix': "PCI:2d:00:0"
The Question
I am new to NixOS and how these configs are ingested. Can anyone point me to where I can edit the allowed regex to test a fix? Thanks in advance for any input!
Edit: formatting