Power management - Revision history

Jutty: Remove an unmatched parenthesis

2025-06-25T23:11:26Z

Remove an unmatched parenthesis

← Older revision		Revision as of 23:11, 25 June 2025
Line 181:		Line 181:
	== acpid2 custom scripts and event files ==		== acpid2 custom scripts and event files ==

	When using acpid2 from the {{pkg\|acpid}} package, the provided <code>handler.sh</code> acts a catch-all for all supported events: power button presses, lid open and close, power plug connection, among others). While this is convenient as a default and for simple modifications, you can also separate scripts from event declarations and manage them independently, using event files to declare which scripts apply to which events.		When using acpid2 from the {{pkg\|acpid}} package, the provided <code>handler.sh</code> acts a catch-all for all supported events: power button presses, lid open and close, power plug connection, among others. While this is convenient as a default and for simple modifications, you can also separate scripts from event declarations and manage them independently, using event files to declare which scripts apply to which events.

	A minimal {{path\|/etc/acpi}} directory could look like this:		A minimal {{path\|/etc/acpi}} directory could look like this:

Prabuanand: added wikilinks

2025-06-15T03:38:20Z

added wikilinks

← Older revision		Revision as of 03:38, 15 June 2025
Line 1:		Line 1:
	[https://en.wikipedia.org/wiki/Power_management Power management] is a feature of computer CPUs, GPUs and peripherals such as monitors and printers, that turns off the power or switches the system to a low-power state when inactive based on a standard called ACPI.		[https://en.wikipedia.org/wiki/Power_management Power management] is a feature of computer CPUs, GPUs and peripherals such as monitors and printers, that turns off the power or switches the system to a low-power state when inactive based on a standard called ACPI.

	== Installation ==		== Installation ==
Line 254:		Line 254:

	== See also ==		== See also ==
			* [[CPU frequency scaling]]
			* [[Setting up a laptop#Extending battery life\|Extending battery life on a laptop]]
	* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd]		* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd]
	* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]		* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]

Jutty: Expand on acpid2 configuration

2025-06-09T13:43:55Z

Expand on acpid2 configuration

Show changes

Prabuanand: added a sentence on the need for the power management utility

2025-05-07T15:52:50Z

added a sentence on the need for the power management utility

← Older revision		Revision as of 15:52, 7 May 2025
Line 8:		Line 8:
	On installation of the above package, the inbuilt [[#Busybox acpid\|Busybox acpid]] daemon gets replaced.		On installation of the above package, the inbuilt [[#Busybox acpid\|Busybox acpid]] daemon gets replaced.

	=== Power management utilities ===		== Service configuration ==

			Enable and start the {{ic\|acpid}} daemon using the standard [[OpenRC]] commands:{{cmd\|# rc-update add acpid && rc-service acpid start}}

			== Power management utilities ==

			There are a number of power management utilities available in Alpine Linux. You may want to install one of them, if your [[Desktop environments and Window managers\|Desktop software]] needs one.

	~~There are a number of power management utilities available in Alpine Linux.~~
	{\| class="wikitable" align="center" style="width:100%; border:1px #0771a6 solid; background:#f9f9f9; text-align:left; border-collapse:collapse;"		{\| class="wikitable" align="center" style="width:100%; border:1px #0771a6 solid; background:#f9f9f9; text-align:left; border-collapse:collapse;"
	\|-style="background:#333333; color:#ffffff; font-size: 1.2em; text-align:center;"		\|-style="background:#333333; color:#ffffff; font-size: 1.2em; text-align:center;"
Line 23:		Line 28:
	\|{{pkg\|pm-utils}} \|\|https://pm-utils.freedesktop.org/wiki/\|\|Collection of scripts that handle suspend and resume on behalf of HAL		\|{{pkg\|pm-utils}} \|\|https://pm-utils.freedesktop.org/wiki/\|\|Collection of scripts that handle suspend and resume on behalf of HAL
	\|}		\|}

	~~== Service configuration ==~~

	~~Enable and start the {{ic\|acpid}} daemon using the standard [[OpenRC]] commands:{{cmd\|# rc-update add acpid && rc-service acpid start}}~~

	== Busybox acpid ==		== Busybox acpid ==

Prabuanand: added information on power management utilities in table format

2025-05-07T09:30:37Z

added information on power management utilities in table format

← Older revision		Revision as of 09:30, 7 May 2025
Line 11:		Line 11:

	There are a number of power management utilities available in Alpine Linux.		There are a number of power management utilities available in Alpine Linux.
			{\| class="wikitable" align="center" style="width:100%; border:1px #0771a6 solid; background:#f9f9f9; text-align:left; border-collapse:collapse;"
	* {{pkg\|zzz}}		\|-style="background:#333333; color:#ffffff; font-size: 1.2em; text-align:center;"
	* {{Pkg\|powerctl}}		\|width="18%" \| Tool
	* {{pkg\|pm-utils}}		\|width="30%"\| Website
			\|Brief Notes
			\|-
			\|{{pkg\|zzz}}\|\|https://github.com/jirutka/zzz\|\| A simple program to suspend or hibernate your computer. It supports hooks before and after suspending.
			\|-
			\|{{Pkg\|powerctl}} \|\|https://sr.ht/~sircmpwn/powerctl/\|\|A simple command line utility to control power states on Linux i.e. to suspend or hibernate the system.
			\|-
			\|{{pkg\|pm-utils}} \|\|https://pm-utils.freedesktop.org/wiki/\|\|Collection of scripts that handle suspend and resume on behalf of HAL
			\|}

	== Service configuration ==		== Service configuration ==
Line 104:		Line 112:
	== See also ==		== See also ==

	* [https://github.com/jirutka/zzz zzz homepage]
	* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd]		* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd]
	* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]		* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]

Prabuanand: fixed typo

2025-05-03T10:42:19Z

fixed typo

← Older revision		Revision as of 10:42, 3 May 2025
Line 1:		Line 1:
	[https://en.wikipedia.org/wiki/Power_management Power management] is a feature of computer CPUs, GPUs and peripherals such as monitors and printers, that turns off the power or switches the system to a low-power state when inactive based on a standard called ACPI~~, which has superseded APM~~. ~~This page explains how to configure what happens~~		[https://en.wikipedia.org/wiki/Power_management Power management] is a feature of computer CPUs, GPUs and peripherals such as monitors and printers, that turns off the power or switches the system to a low-power state when inactive based on a standard called ACPI.

	== Installation ==		== Installation ==

Prabuanand: fixed wikitag

2025-05-03T07:04:28Z

fixed wikitag

← Older revision		Revision as of 07:04, 3 May 2025
Line 104:		Line 104:
	== See also ==		== See also ==

	* [https://github.com/jirutka/zzz zzz]		* [https://github.com/jirutka/zzz zzz homepage]
	* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd~~...~~]		* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd]
	* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]		* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]
	* [[ ~~https://wiki.alpinelinux.org/wiki/~~Configure_Wake-on-LAN Configure Wake on LAN]]		* [[Configure_Wake-on-LAN\| Configure Wake on LAN]]

	[[Category:Power Management]]		[[Category:Power Management]]

Prabuanand: added WOL wikilink

2025-05-02T19:51:35Z

added WOL wikilink

← Older revision		Revision as of 19:51, 2 May 2025
Line 107:		Line 107:
	* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd...]		* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd...]
	* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]		* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]
			* [[ https://wiki.alpinelinux.org/wiki/Configure_Wake-on-LAN Configure Wake on LAN]]

	[[Category:Power Management]]		[[Category:Power Management]]

Prabuanand: added additional power management utilities, fixed caps and rephrased sentence

2025-05-02T19:49:37Z

added additional power management utilities, fixed caps and rephrased sentence

← Older revision		Revision as of 19:49, 2 May 2025
Line 5:		Line 5:
	Alpine Linux comes inbuilt with a basic version of [[#Busybox acpid\|acpid]] as part of [[BusyBox]].		Alpine Linux comes inbuilt with a basic version of [[#Busybox acpid\|acpid]] as part of [[BusyBox]].

	A flexible and extensible [https://sourceforge.net/projects/acpid2/ acpid2] daemon with Netlink support for delivering ACPI events can be installed with the {{pkg\|acpid}} package:{{cmd\|# apk add acpid}} On installation of ~~this~~ package, the inbuilt [[Busybox acpid\|acpid]] daemon gets replaced ~~by this~~.		A flexible and extensible [https://sourceforge.net/projects/acpid2/ acpid2] daemon with Netlink support for delivering ACPI events can be installed with the {{pkg\|acpid}} package:{{cmd\|# apk add acpid}}
			On installation of the above package, the inbuilt [[#Busybox acpid\|Busybox acpid]] daemon gets replaced.

	=== Power management utilities ===		=== Power management utilities ===
Line 12:		Line 13:

	* {{pkg\|zzz}}		* {{pkg\|zzz}}
			* {{Pkg\|powerctl}}
			* {{pkg\|pm-utils}}

	== Service configuration ==		== Service configuration ==
Line 54:		Line 57:
	== Suspend when closing the LID ==		== Suspend when closing the LID ==

	There are a few ways to ~~Suspend~~ a laptop when closing the LID of it.		There are a few ways to suspend a laptop when closing the LID of it.

	Installing a [[#Power management utilities\|power management utility]] like {{pkg\|zzz}} along with {{pkg\|acpid}} package provides full support for pre/post suspend hooks etc. The [https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/main/acpid/handler.sh default handler script] ({{path\|/etc/acpi/handler.sh}}) installed with the package {{pkg\|acpid}} package provides out of the box support for suspend on LID closure.		Installing a [[#Power management utilities\|power management utility]] like {{pkg\|zzz}} along with {{pkg\|acpid}} package provides full support for pre/post suspend hooks etc. The [https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/main/acpid/handler.sh default handler script] ({{path\|/etc/acpi/handler.sh}}) installed with the package {{pkg\|acpid}} package provides out of the box support for suspend on LID closure.

Prabuanand: added content from Suspend on LID close

2025-05-02T19:28:03Z

added content from Suspend on LID close

← Older revision		Revision as of 19:28, 2 May 2025
Line 5:		Line 5:
	Alpine Linux comes inbuilt with a basic version of [[#Busybox acpid\|acpid]] as part of [[BusyBox]].		Alpine Linux comes inbuilt with a basic version of [[#Busybox acpid\|acpid]] as part of [[BusyBox]].

	A flexible and extensible [https://sourceforge.net/projects/acpid2/ acpid2] daemon with Netlink support for delivering ACPI events can be installed with the {{pkg\|acpid}} package:{{cmd\|# apk add acpid}}~~. This~~ package ~~will replace~~ the inbuilt [[Busybox acpid\|acpid]] ~~on installation~~.		A flexible and extensible [https://sourceforge.net/projects/acpid2/ acpid2] daemon with Netlink support for delivering ACPI events can be installed with the {{pkg\|acpid}} package:{{cmd\|# apk add acpid}} On installation of this package, the inbuilt [[Busybox acpid\|acpid]] daemon gets replaced by this.

	=== Power management utilities ===		=== Power management utilities ===
Line 51:		Line 51:

	When the power button is pressed, acpid runs script {{path\|/etc/acpi/power}}.		When the power button is pressed, acpid runs script {{path\|/etc/acpi/power}}.

			== Suspend when closing the LID ==

			There are a few ways to Suspend a laptop when closing the LID of it.

			Installing a [[#Power management utilities\|power management utility]] like {{pkg\|zzz}} along with {{pkg\|acpid}} package provides full support for pre/post suspend hooks etc. The [https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/main/acpid/handler.sh default handler script] ({{path\|/etc/acpi/handler.sh}}) installed with the package {{pkg\|acpid}} package provides out of the box support for suspend on LID closure.

			Alternately, this can be achieved using [[#Busybox acpid\|Busybox acpid]] with a hook in {{path\|/etc/acpi/LID/00000080}}. Make the hook executable:{{cmd\|# chmod +x /etc/acpi/LID/00000080}}
			Ensure that the [[#Service configuration\|acpid daemon service]] is running.

			Configuring with {{pkg\|zzz}}:{{cat\|/etc/acpi/LID/00000080\|#!/bin/sh
			exec zzz
			}}
			Configuring with {{pkg\|pm-utils}}: {{cat\|/etc/acpi/LID/00000080\|#!/bin/sh
			exec pm-suspend
			}}
			Configuring with ''' raw variant''': {{cat\|/etc/acpi/LID/00000080\|#!/bin/sh
			echo mem > /sys/power/state
			}}

			=== elogind and power management ===

			If [[elogind]] is used, add the following line to {{Path\|/etc/doas.conf}} config file {{Cat\|/etc/doas.conf\|...
			permit nopass $USER as root cmd /bin/loginctl
			}}

			You should now be able to [[#Suspend when closing the LID\|suspend]] as a normal user, using the full path to executable. Refer to [[elogind]] page for more detailed information.

	== Handling the pressing of power button ==		== Handling the pressing of power button ==

	In case of desktop environments, it might be useful to allow for some control on what happens when you press the power button instead of shutting down the computer. This can be done via inbuilt Busybox [[#Busybox acpid\|acpid]] by creating/modifying the hook in {{path\|/etc/acpi/PWRF/00000080}}.		In case of desktop environments, it might be useful to allow for some control on what happens when you press the power button instead of shutting down the computer. This can be done via inbuilt Busybox [[#Busybox acpid\|acpid]] by creating/modifying the hook in {{path\|/etc/acpi/PWRF/00000080}}. Make the hook executable: {{cmd\|# chmod +x /etc/acpi/PWRF/00000080}}
			Ensure that the [[#Service configuration\|acpid daemon service]] is running.

	=== Configuring for shutdown ===		=== Configuring for shutdown ===
Line 66:		Line 94:
	zzz}}		zzz}}

	=== Disabling ===		=== Disabling the power button ===

	To disable simply comment or remove the hook. This is useful to allow desktop environments like [[Gnome]] or [[KDE]] to handle the power button. {{cat\|/etc/acpi/PWRF/00000080\|#!/bin/sh		To disable simply comment or remove the hook. This is useful to allow desktop environments like [[Gnome]] or [[KDE]] to handle the power button. {{cat\|/etc/acpi/PWRF/00000080\|#!/bin/sh
	#Nothing}}		#Nothing}}

			== See also ==

			* [https://github.com/jirutka/zzz zzz]
			* [https://unix.stackexchange.com/questions/484550/pm-suspend-vs-systemctl-suspend pm-suspend vs systemd...]
			* [https://wiki.archlinux.org/index.php?title=Pm-utils&oldid=498864 Archwiki pm-utils (archived page)]

	[[Category:Power Management]]		[[Category:Power Management]]