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dell/xps/15-7590/README.wiki
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= Dell XPS 15 7590 =
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*Mostly copied from 15-9550
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== Tested Hardware ==
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* CPU: Intel(R) Core(TM) i9-9980HK
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* RAM: 32 GB
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* HDD: 1 TiB SSD
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* Screen: 15" 4k (3840✕2160)
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* Input: Touchscreen and trackpad.
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== Firmware Configuration ==
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Not much tweaking of NixOS itself was needed. But we currently cannot automate the firmware setup, so this must be done by hand.
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=== Before installation ===
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These settings are needed both for booting the final install, and installer itself. Therefore, they must be done first.
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* ''Disable Secure Boot (but keep UEFI Boot).'' Thankfully doing so is as easy as changing any other simple setting.
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* ''Disable Intel hardware RAID and use AHCI instead.'' Intel doesn't seem to provide a working linux driver for this. (If you just have SSD it's pointless and just slows things down needlessly anyways.)
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=== Wifi ===
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~~Wifi does not work with kernels older than 5.1 (firmware not present) or newer~~ (https://bbs.archlinux.org/viewtopic.php?id=247705)
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Update: The 48.ucode causes the Killer wifi card to crash. The iwlfwifi-cc-a0-46.ucode works perfectly. default.nix contains an overlay that removes the offending ucode from the linux-firmware bundle.
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```
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# Use the systemd-boot EFI boot loader.
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boot.loader.systemd-boot.enable = true;
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boot.loader.grub = {
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device = "nodev";
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efiSupport = true;
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efiInstallAsRemovable = true;
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};
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boot.loader.efi.canTouchEfiVariables = true;
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boot.kernelPackages = pkgs.linuxPackages_5_1;
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```
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Disable the `canTouchEfiVariables` after a boot or two to prevent NVRAM wearout.
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=== After installation ===
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* ''Add systemd-boot to UEFI boot list.'' The (uneditable anyways) settings mapping drive UUIDs to HD* work fine.
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=== Optional ===
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* ''Update BIOS.'' According to Reddit, this helps with battery life.
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=== Troubleshooting ===
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39
dell/xps/15-7590/default.nix
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dell/xps/15-7590/default.nix
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{ lib, ... }:
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{
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imports = [
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../../../common/cpu/intel
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../../../common/pc/laptop
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../../../common/pc/ssd
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];
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# Set to true for just the first run, then disable it.
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# boot.loader.efi.canTouchEfiVariables = lib.mkDefault true;
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# Earlier font-size setup
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console.earlySetup = true;
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# Prevent small EFI partiion from filling up
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boot.loader.grub.configurationLimit = 10;
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# The 48.ucode causes the Killer wifi card to crash.
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# The iwlfwifi-cc-a0-46.ucode works perfectly
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nixpkgs.pkgs = import <nixpkgs> {
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config.allowUnfree = true;
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overlays = [
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(self: super: {
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firmwareLinuxNonfree = super.firmwareLinuxNonfree.overrideAttrs (old: {
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src = super.fetchgit{
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url = "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git";
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rev = "bf13a71b18af229b4c900b321ef1f8443028ded8";
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sha256 = "1dcaqdqyffxiadx420pg20157wqidz0c0ca5mrgyfxgrbh6a4mdj";
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};
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postInstall = ''
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rm $out/lib/firmware/iwlwifi-cc-a0-48.ucode
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'';
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outputHash = "0dq48i1cr8f0qx3nyq50l9w9915vhgpwmwiw3b4yhisbc3afyay4";
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});
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})
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];
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};
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}
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Loading…
Reference in a new issue