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dell-precision-5560: init #1122

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Sep 28, 2024
Merged

dell-precision-5560: init #1122

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06c46e3
dell-precision-5560: init
matdibu Sep 12, 2024
c97623b
dell-precision-5560: cleanup
matdibu Sep 23, 2024
a4e69fc
dell-precision-5560: add README
matdibu Sep 23, 2024
2061ba2
dell-precision-5560: remove redundant config
matdibu Sep 27, 2024
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20 changes: 20 additions & 0 deletions dell/precision/5560/README.md
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## Dell Precision 5560

- Intel i7-11800H
- 00:02.0 VGA compatible controller [0300]: Intel Corporation TigerLake-H GT1 [UHD Graphics] [8086:9a60] (rev 01)
- 01:00.0 3D controller [0302]: NVIDIA Corporation TU117GLM [T1200 Laptop GPU] [10de:1fbc] (rev a1)

If you want to use the new Intel Xe driver, add this to your config:
```nix
boot.extraModprobeConfig = ''
options xe force_probe=9a60
options i915 force_probe=!9a60
'';
```

And you should decide what you want to do with the NVIDIA GPU, either sync or offload.

Fwupd works, you can update the BIOS and DBX.
```nix
services.fwupd.enable = true;
```
21 changes: 21 additions & 0 deletions dell/precision/5560/default.nix
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{ lib, ... }:
{
imports = [
../../../common/pc/laptop
../../../common/pc/laptop/ssd
../../../common/cpu/intel
../../../common/gpu/intel/tiger-lake
../../../common/gpu/nvidia/turing
];

hardware.enableRedistributableFirmware = lib.mkDefault true;

boot = {
kernelParams = [ "i915.modeset=1" ];
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@Mic92 what about this? I think it should at least be wrapped in a
lib.mkIf (config.hardware.intelgpu.driver == "i915")
but at that point, maybe it should be in common ?

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You are probably right.

Suggested change
kernelParams = [ "i915.modeset=1" ];
kernelParams = lib.mkIf (config.hardware.intelgpu.driver == "i915") [ "i915.modeset=1" ];

Also is this laptop not new enough to use xe anyway? Also isn't modset=1 the default since along time also?

lsmod | grep 'xe'
xe                   2875392  0
drm_gpuvm              45056  1 xe
drm_exec               12288  2 drm_gpuvm,xe
gpu_sched              65536  1 xe
drm_suballoc_helper    12288  1 xe
drm_ttm_helper         12288  1 xe
drm_buddy              20480  2 xe,i915
ttm                   102400  3 drm_ttm_helper,xe,i915
drm_display_helper    258048  2 xe,i915
cec                    73728  3 drm_display_helper,xe,i915
i2c_algo_bit           20480  2 xe,i915
video                  81920  2 xe,i915
backlight              28672  3 video,xe,i915

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it is, I left a note in the readme about using xe instead of i915
I simply don't know if we should default to that or not, since it's pretty new and might be less stable than i915

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also, I'm not sure about i915.modeset, I can see this locally:

$ modinfo i915 | grep modeset:
parm:           modeset:Use kernel modesetting [KMS] (0=disable, 1=on, -1=force vga console preference [default]) (int)

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are you on a precision5560 right now? I had to use force_probe to swap to xe

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fair enough, and thanks for reviewing btw!
but now I'm not sure the conditional in common/gpu/intel/tiger-lake/default.nix makes sense
could there be other tigerlake igpu device IDs that are whitelisted for xe? if not, maybe we should remove xe from that config

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I looked through the kernel sources for xe, found this struct:

static const struct xe_device_desc tgl_desc = {
        .graphics = &graphics_xelp,
        .media = &media_xem,
        PLATFORM(TIGERLAKE),
        .has_display = true,
        .has_llc = true,
        .require_force_probe = true,
};

so tigerlake has require_force_probe = true

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Seems like it, only LUNARLAKE and BATTLEMAGE will actually use the driver without force probe:

static const struct xe_device_desc lnl_desc = {
	PLATFORM(LUNARLAKE),
	.has_display = true,
};

static const struct xe_device_desc bmg_desc = {
	DGFX_FEATURES,
	PLATFORM(BATTLEMAGE),
	.has_display = true,
	.has_heci_cscfi = 1,
};

So we should probably adapt it for nixos-hardware as well.

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So this was introduced by @fidgetingbits in #944

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#1149

};

hardware.nvidia.prime = {
intelBusId = "PCI:0:2:0";
nvidiaBusId = "PCI:1:0:0";
};
}
1 change: 1 addition & 0 deletions flake.nix
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dell-poweredge-r7515 = import ./dell/poweredge/r7515;
dell-precision-3541 = import ./dell/precision/3541;
dell-precision-5530 = import ./dell/precision/5530;
dell-precision-5560 = import ./dell/precision/5560;
dell-precision-7520 = import ./dell/precision/7520;
dell-xps-13-7390 = import ./dell/xps/13-7390;
dell-xps-13-9300 = import ./dell/xps/13-9300;
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