Laptop: Difference between revisions

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==== tlp ====

A common tool used to save power on laptops is tlp, which ~~have~~ sensible defaults for most laptops. To enable tlp you simply just write <code>services.tlp.enable = true;</code> in your configraion.nix. However if you need a specific configuration you can do as shown in the example here below.

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

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==== auto-cpufreq ====

Another tool used for power management is auto-cpufreq which aims to replace tlp. When using auto-cpufreq it is therefore recommended to disable tlp as these tools are conflicting each other. However NixOS does allow for using both at the same time and you therefore run them in tandem at your own risk. To enable the service just add <code>services.auto-cpufreq.enable = true;</code> to your configuration.nix

Another tool used for power management is auto-cpufreq which aims to replace tlp. When using auto-cpufreq it is therefore recommended to disable tlp as these tools are conflicting with each other. However, NixOS does allow for using both at the same time, and you therefore run them in tandem at your own risk. To enable the service, just add <code>services.auto-cpufreq.enable = true;</code> to your configuration.nix

Example of how to configure auto-cpufreq:

services.auto-cpufreq.enable = true;

services.auto-cpufreq.settings = {

battery = {

governor = "powersave";

turbo = "never";

};

charger = {

governor = "performance";

turbo = "auto";

};

</syntaxHighlight>

==== Powertop ====

Powertop is a power analysis tool, but it also has a feature ~~refered~~ to as auto tune which will enable ~~powersaving~~ settings on your device. These ~~powersaving~~ settings should be almost the same as those ~~enable~~ by tlp, although you powertop ~~enales~~ usb autosuspend per default. This can make your input devices such as the keyboard unresponsive for some time when it has been suspended. To enable write <code>powerManagement.powertop.enable = true;</code>.

Powertop is a power analysis tool, but it also has a feature referred to as auto-tune which will enable power saving settings on your device. These power saving settings should be almost the same as those enabled by tlp, although you powertop enables usb autosuspend per default. This can make your input devices such as the keyboard unresponsive for some time when it has been suspended. To enable powetop write <code>powerManagement.powertop.enable = true;</code> and it should be noted that this also enables the auto-tune feature of powertop.

== Troubleshooting ==

@@ Line 3: / Line 3: @@
 ==== tlp ====
-A common tool used to save power on laptops is tlp, which have sensible defaults for most laptops. To enable tlp you simply just write <code>services.tlp.enable = true;</code> in your configraion.nix. However if you need a specific configuration you can do as shown in the example here below.
+A common tool used to save power on laptops is tlp, which has sensible defaults for most laptops. To enable tlp you simply just write <code>services.tlp.enable = true;</code> in your configraion.nix. However, if you need a specific configuration, you can do as shown in the example here below.
 <syntaxHighlight lang=nix>
@@ Line 26: / Line 26: @@
 ==== auto-cpufreq ====
-Another tool used for power management is auto-cpufreq which aims to replace tlp. When using auto-cpufreq it is therefore recommended to disable tlp as these tools are conflicting each other. However NixOS does allow for using both at the same time and you therefore run them in tandem at your own risk. To enable the service just add <code>services.auto-cpufreq.enable = true;</code> to your configuration.nix
+Another tool used for power management is auto-cpufreq which aims to replace tlp. When using auto-cpufreq it is therefore recommended to disable tlp as these tools are conflicting with each other. However, NixOS does allow for using both at the same time, and you therefore run them in tandem at your own risk. To enable the service, just add <code>services.auto-cpufreq.enable = true;</code> to your configuration.nix
+Example of how to configure auto-cpufreq:
+<syntaxHighlight lang=nix>
+services.auto-cpufreq.enable = true;
+services.auto-cpufreq.settings = {
+  battery = {
+     governor = "powersave";
+     turbo = "never";
+  };
+  charger = {
+     governor = "performance";
+     turbo = "auto";
+  };
+};
+</syntaxHighlight>
 ==== Powertop ====
-Powertop is a power analysis tool, but it also has a feature refered to as auto tune which will enable powersaving settings on your device. These powersaving settings should be almost the same as those enable by tlp, although you powertop enales usb autosuspend per default. This can make your input devices such as the keyboard unresponsive for some time when it has been suspended. To enable write  <code>powerManagement.powertop.enable = true;</code>.
+Powertop is a power analysis tool, but it also has a feature referred to as auto-tune which will enable power saving settings on your device. These power saving settings should be almost the same as those enabled by tlp, although you powertop enables usb autosuspend per default. This can make your input devices such as the keyboard unresponsive for some time when it has been suspended. To enable powetop write  <code>powerManagement.powertop.enable = true;</code> and it should be noted that this also enables the auto-tune feature of powertop.
 == Troubleshooting ==