49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
# 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. |