Linux command
pm-utils 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Suspend to RAM (S3 sleep state)
sudo pm-suspend
Hibernate to disk (S4 sleep state)
sudo pm-hibernate
Hybrid suspend (save to disk then suspend to RAM)
sudo pm-suspend-hybrid
Check if suspend is supported
pm-is-supported --suspend && echo "Supported"
Check if hibernate is supported
pm-is-supported --hibernate && echo "Supported"
Enable power saving mode
sudo pm-powersave true
说明
pm-utils is a collection of power management utilities for Linux. It provides a framework for suspend, hibernate, and power saving with hardware quirk support. pm-suspend puts the system into S3 (suspend to RAM). Most devices are shut down and system state is saved in RAM, requiring ongoing power. Most systems enter and leave suspend in 3 to 5 seconds. pm-hibernate puts the system into S4 (suspend to disk). The system is fully powered off and state is saved to the swap partition. The system can stay hibernated indefinitely without power. pm-suspend-hybrid first saves state to disk like hibernate, then suspends to RAM. This allows quicker wake if power is maintained, with a fallback to resume from disk if power is lost. pm-is-supported tests whether a given sleep mode is supported by the system (exit code 0 means supported). pm-powersave enables or disables power saving mode. Hook scripts in `/etc/pm/sleep.d/` and `/etc/pm/power.d/` are executed during transitions, allowing custom actions on suspend, resume, hibernate, and thaw events.
参数
- --quirk-dpms-on
- Force DPMS on after resume.
- --quirk-vbe-post
- Re-POST the video BIOS on resume.
- --quirk-vbestate-restore
- Save and restore VBE state on suspend/resume.
- --quirk-vbemode-restore
- Save and restore VBE mode on suspend/resume.
- --quirk-radeon-off
- Turn the screen off when suspending with a Radeon video chip.
- --quirk-s3-bios
- Use S3 BIOS mode when suspending.
- --quirk-s3-mode
- Use S3 mode when suspending.
FAQ
What is the pm-utils command used for?
pm-utils is a collection of power management utilities for Linux. It provides a framework for suspend, hibernate, and power saving with hardware quirk support. pm-suspend puts the system into S3 (suspend to RAM). Most devices are shut down and system state is saved in RAM, requiring ongoing power. Most systems enter and leave suspend in 3 to 5 seconds. pm-hibernate puts the system into S4 (suspend to disk). The system is fully powered off and state is saved to the swap partition. The system can stay hibernated indefinitely without power. pm-suspend-hybrid first saves state to disk like hibernate, then suspends to RAM. This allows quicker wake if power is maintained, with a fallback to resume from disk if power is lost. pm-is-supported tests whether a given sleep mode is supported by the system (exit code 0 means supported). pm-powersave enables or disables power saving mode. Hook scripts in `/etc/pm/sleep.d/` and `/etc/pm/power.d/` are executed during transitions, allowing custom actions on suspend, resume, hibernate, and thaw events.
How do I run a basic pm-utils example?
Run `sudo pm-suspend` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does --quirk-dpms-on do in pm-utils?
Force DPMS on after resume.