os/hosts/dumpyourvms/dumpyourvms.nix

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{
config,
lib,
pkgs,
...
}:
with lib; let
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psCfg = config.pub-solar;
xdg = config.home-manager.users."${psCfg.user.name}".xdg;
in {
pub-solar = {
terminal-life.full = true;
core.hibernation = {
enable = true;
resumeDevice = "/dev/mapper/cryptroot";
resumeOffset = 47366144;
};
};
boot.kernelPackages = pkgs.linuxPackages_6_6;
# Fix backlight for keyboard and brightness, adjust function key binding,
# intel_pstate for cpu schedutil
# For now, the radeon driver seems to work better than amdgpu with Radeon R9 M370X
# Explicitly set amdgpu support in place of radeon
# Source: https://github.com/NixOS/nixos-hardware/blob/master/common/gpu/amd/southern-islands/default.nix
# Try again after https://lists.freedesktop.org/archives/amd-gfx/2023-March/090096.html lands
boot.kernelParams = ["acpi_backlight=video" "hid_apple.fnmode=2" "intel_pstate=passive" "radeon.si_support=0" "amdgpu.si_support=1"];
boot.loader.efi.canTouchEfiVariables = true;
# Fix for Error switching console mode to 1: unsupported on startup
boot.loader.systemd-boot.consoleMode = mkForce "0";
boot.binfmt.emulatedSystems = ["aarch64-linux"];
systemd.sleep.extraConfig = ''
HibernateMode=shutdown
'';
hardware = {
cpu.intel.updateMicrocode = true;
facetimehd.enable = true;
opengl = {
extraPackages = with pkgs; [intel-media-driver];
};
};
# Avoid nix builds making the laptop hang by reserving 1 core
nix.settings.cores = 7;
networking.hostName = "dumpyourvms";
services.resolved = {
enable = true;
# DNSSEC=false because of random SERVFAIL responses with Greenbaum DNS
# when using allow-downgrade, see https://github.com/systemd/systemd/issues/10579
extraConfig = ''
DNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 5.9.164.112#dns3.digitalcourage.de 89.233.43.71#unicast.censurfridns.dk 185.49.141.37#getdnsapi.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net 2a01:4f8:251:554::2#dns3.digitalcourage.de 2a01:3a0:53:53::0#unicast.censurfridns.dk 2a04:b900:0:100::38#getdnsapi.net
FallbackDNS=9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
Domains=~.
DNSOverTLS=yes
DNSSEC=false
'';
};
services.tailscale.enable = true;
security.pki.certificateFiles = [./consul-agent-ca.pem];
# Power off dedicated GPU, use only integrated Intel GPU to save battery
# https://github.com/NixOS/nixpkgs/pull/33915
# https://ubuntuforums.org/showthread.php?t=2409856
systemd.services."amd-hybrid-graphics-power-save" = {
path = [pkgs.bash];
description = "Power Off dedicated AMD Card to reduce power usage";
requires = ["sys-kernel-debug.mount"];
enable = true;
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = "${pkgs.bash}/bin/sh -c 'sleep 7 && if grep --quiet 'IGD:+' /sys/kernel/debug/vgaswitcheroo/switch; then echo -e \"IGD\\nOFF\" > /sys/kernel/debug/vgaswitcheroo/switch; fi'";
ExecStop = "${pkgs.bash}/bin/sh -c 'echo ON >/sys/kernel/debug/vgaswitcheroo/switch'";
};
wantedBy = ["multi-user.target"];
};
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# Increase console font size for HiDPI display
console = {
earlySetup = true;
font = lib.mkForce "ter-i32b";
packages = [pkgs.terminus_font];
};
# Thunderbolt tools
services.hardware.bolt.enable = true;
# Enable udev rules for gnupg smart cards
hardware.gpgSmartcards.enable = true;
powerManagement = {
# Use new schedutil govenor
# https://github.com/NixOS/nixpkgs/pull/42330
# https://www.kernel.org/doc/html/v5.10/admin-guide/pm/cpufreq.html#schedutil
cpuFreqGovernor = lib.mkDefault "schedutil";
# brcmfmac being loaded during hibernation would inhibit a successful resume
# https://bugzilla.kernel.org/show_bug.cgi?id=101681#c116.
# Also brcmfmac could randomly crash on resume from sleep.
# To hibernate successfully using the amdgpu driver, the dedicated GPU needs
# to be powered on.
powerUpCommands = lib.mkBefore (
"${pkgs.kmod}/bin/modprobe brcmfmac"
+ lib.optionalString
(lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.2") " brcmfmac_wcc"
);
powerDownCommands = lib.mkBefore (
lib.optionalString
(lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.2")
"${pkgs.kmod}/bin/rmmod brcmfmac_wcc\n"
+ ''
${pkgs.kmod}/bin/rmmod brcmfmac
${pkgs.systemd}/bin/systemctl stop amd-hybrid-graphics-power-save.service
''
);
resumeCommands =
if config.systemd.services."amd-hybrid-graphics-power-save".enable == true
then ''
${pkgs.systemd}/bin/systemctl start amd-hybrid-graphics-power-save.service
''
else "";
};
# Change lid switch behaviour
services.logind.lidSwitch = "hibernate";
# TLP for power management
services.tlp = {
enable = true;
settings = {
CPU_SCALING_GOVERNOR_ON_AC = "performance";
CPU_SCALING_GOVERNOR_ON_BAT = "schedutil";
CPU_BOOST_ON_AC = 1;
CPU_BOOST_ON_BAT = 0;
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};
};
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services.udev.extraRules =
# Disable XHC1 wakeup signal to avoid resume getting triggered some time
# after suspend. Reboot required for this to take effect.
lib.optionalString
(lib.versionAtLeast config.boot.kernelPackages.kernel.version "3.13")
''SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"'';
services.printing.enable = true;
home-manager = pkgs.lib.setAttrByPath ["users" psCfg.user.name] {
# Custom device sway configs
xdg.configFile = {
"sway/config.d/10-applications.conf".source = ./.config/sway/config.d/applications.conf;
"sway/config.d/autostart.conf".source = ./.config/sway/config.d/autostart.conf;
"sway/config.d/10-custom-keybindings.conf".source = ./.config/sway/config.d/custom-keybindings.conf;
"sway/config.d/input-defaults.conf".source = ./.config/sway/config.d/input-defaults.conf;
"sway/config.d/screens.conf".source = ./.config/sway/config.d/screens.conf;
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};
};
# WLAN frequency compliance (e.g. check for radar with DFS)
hardware.firmware = with pkgs; [wireless-regdb];
boot.extraModprobeConfig = ''
options cfg80211 ieee80211_regdom="DE"
# Enable the integrated GPU (iGPU) Intel i915 by default if present
options apple-gmux force_igd=y
'';
# This value determines the NixOS release from which the default
# settings for stateful data, like file locations and database versions
# on your system were taken. Its perfectly fine and recommended to leave
# this value at the release version of the first install of this system.
# Before changing this value read the documentation for this option
# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
system.stateVersion = "21.05"; # Did you read the comment?
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}