Laptop: Difference between revisions

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= Closing the lid =

~~<syntaxhighlight lang~~=~~"nixos">~~

{{File|3=services.logind.settings.Login = {

services.logind.~~lidSwitch~~ = "poweroff";

HandleLidSwitch = "poweroff";

~~services.logind.lidSwitchExternalPower~~ = "lock";

HandleLidSwitchExternalPower = "lock";

~~services.logind.lidSwitchDocked~~ = "ignore";

HandleLidSwitchDocked = "ignore";

};

# one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", "lock"

# one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", "lock"|name=/etc/nixos/configuration.nix|lang=nix}}

~~</syntaxhighlight>~~These three options can be used to configure how a laptop should behave when the lid is closed. In this example, it normally shuts down. If power is connected, only the screen is locked. If another screen is connected instead, nothing happens.

These three options can be used to configure how a laptop should behave when the lid is closed. In this example, it normally shuts down. If power is connected, only the screen is locked. If another screen is connected instead, nothing happens.

= Power management =

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A common tool used to save power on laptops is [https://linrunner.de/tlp/index.html TLP], which has sensible defaults for most laptops. To enable TLP you simply just write <code>services.tlp.enable = true;</code> in your <code>configuration.nix</code>. However, if you need a specific configuration, you can do as shown in the example below.

<~~syntaxHighlight~~ lang=nix>

services.tlp = {

enable = true;

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# Optional helps save long term battery health

START_CHARGE_THRESH_BAT0 = 40; # 40 and ~~bellow~~ it starts to charge

START_CHARGE_THRESH_BAT0 = 40; # 40 and below it starts to charge

STOP_CHARGE_THRESH_BAT0 = 80; # 80 and above it stops charging

};

</~~syntaxHighlight~~>

</syntaxhighlight>

This example enables TLP and sets the minimum and maximum frequencies for the CPU based on whether it is plugged into power or not. It also changes the CPU scaling governor based on this.

@@ Line 1: / Line 1: @@
 = Closing the lid =
-<syntaxhighlight lang="nixos">
+{{File|3=services.logind.settings.Login = {
-services.logind.lidSwitch = "poweroff";
+  HandleLidSwitch = "poweroff";
-services.logind.lidSwitchExternalPower = "lock";
+  HandleLidSwitchExternalPower = "lock";
-services.logind.lidSwitchDocked = "ignore";
+  HandleLidSwitchDocked = "ignore";
+};
-# one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", "lock"
+# one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", "lock"|name=/etc/nixos/configuration.nix|lang=nix}}
-</syntaxhighlight>These three options can be used to configure how a laptop should behave when the lid is closed. In this example, it normally shuts down. If power is connected, only the screen is locked. If another screen is connected instead, nothing happens.
+These three options can be used to configure how a laptop should behave when the lid is closed. In this example, it normally shuts down. If power is connected, only the screen is locked. If another screen is connected instead, nothing happens.
 = Power management =
@@ Line 18: / Line 19: @@
 A common tool used to save power on laptops is [https://linrunner.de/tlp/index.html TLP], which has sensible defaults for most laptops. To enable TLP you simply just write <code>services.tlp.enable = true;</code> in your <code>configuration.nix</code>. However, if you need a specific configuration, you can do as shown in the example below.
-<syntaxHighlight lang=nix>
+<syntaxhighlight lang="nix">
 services.tlp = {
    enable = true;
@@ Line 34: / Line 35: @@
      # Optional helps save long term battery health
-     START_CHARGE_THRESH_BAT0 = 40; # 40 and bellow it starts to charge
+     START_CHARGE_THRESH_BAT0 = 40; # 40 and below it starts to charge
      STOP_CHARGE_THRESH_BAT0 = 80;  # 80 and above it stops charging
    };
 };
-</syntaxHighlight>
+</syntaxhighlight>
 This example enables TLP and sets the minimum and maximum frequencies for the CPU based on whether it is plugged into power or not. It also changes the CPU scaling governor based on this.