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			53 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
= 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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