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			48 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			48 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ lib, pkgs, ... }: {
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  imports = [
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    ../common
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    ../common/intel.nix
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  ];
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  boot.kernelParams = [
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    # For Power consumption
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    # https://kvark.github.io/linux/framework/2021/10/17/framework-nixos.html
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    "mem_sleep_default=deep"
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    # Workaround iGPU hangs
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    # https://discourse.nixos.org/t/intel-12th-gen-igpu-freezes/21768/4
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    "i915.enable_psr=1"
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  ];
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  # This enables the brightness and airplane mode keys to work
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  # https://community.frame.work/t/12th-gen-not-sending-xf86monbrightnessup-down/20605/11
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  boot.blacklistedKernelModules = [ "hid-sensor-hub" ];
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  # Further tweak to ensure the brightness and airplane mode keys work
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  # https://community.frame.work/t/responded-12th-gen-not-sending-xf86monbrightnessup-down/20605/67
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  systemd.services.bind-keys-driver = {
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    description = "Bind brightness and airplane mode keys to their driver";
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    wantedBy = [ "default.target" ];
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    after = [ "network.target" ];
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    serviceConfig = {
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      Type = "oneshot";
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      User = "root";
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    };
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    script = ''
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      ls -lad /sys/bus/i2c/devices/i2c-*:* /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-*:*
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      if [ -e /sys/bus/i2c/devices/i2c-FRMW0001:00 -a ! -e /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-FRMW0001:00 ]; then
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        echo fixing
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        echo i2c-FRMW0001:00 > /sys/bus/i2c/drivers/i2c_hid_acpi/bind
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        ls -lad /sys/bus/i2c/devices/i2c-*:* /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-*:*
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        echo done
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      else
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        echo no fix needed
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      fi
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    '';
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  };
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  # Alder Lake CPUs benefit from kernel 5.18 for ThreadDirector
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  # https://www.tomshardware.com/news/intel-thread-director-coming-to-linux-5-18
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  boot.kernelPackages = lib.mkIf (lib.versionOlder pkgs.linux.version "5.18") (lib.mkDefault pkgs.linuxPackages_latest);
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}
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