{"id":47329,"date":"2024-10-06T15:56:56","date_gmt":"2024-10-06T15:56:56","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=47329"},"modified":"2024-10-08T14:07:49","modified_gmt":"2024-10-08T14:07:49","slug":"custom-actions-waking-sleep","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2024\/10\/custom-actions-waking-sleep\/","title":{"rendered":"Auto-run Custom Actions When Waking up Your Ubuntu from Sleep"},"content":{"rendered":"

\"\"<\/a><\/p>\n

This tutorial shows how to automatically run custom command, script, or other actions after resuming your Linux PC\/laptop from suspend or hibernate.<\/p>\n

As you may know, there are quite a few ways to run something automatically at Ubuntu startup. You can use “Startup Applications<\/i>” utility to run apps or custom commands at login, use crontab to schedule startup jobs, udev rules to auto-configure devices on detection, and systemd-tmpfiles<\/a> service to auto create, delete, and write configuration files.<\/p>\n

But what if your computer does not function properly, or some personal settings do not persist after waking up from sleep?<\/p>\n

Without waiting for upstream fixes, you can workaround by creating custom systemd services, to auto-restart the function, or re-configure the settings, and trigger it automatically when waking up from sleep.<\/p>\n

<\/p>\n

NOTE: not only for Ubuntu, this tutorial should work for most Linux that uses systemd, including Debian, Linux Mint, Fedora, Arch, and their based systems.<\/b><\/p>\n

Create wake up actions for root \/ system wide<\/h3>\n

1. Create a systemd service file<\/b> by running command below in a terminal (for Ubuntu, press Ctrl+Alt+T) window.<\/p>\n

sudo gnome-text-editor \/etc\/systemd\/system\/fan-resume.service<\/pre>\n
Here I use gnome-text-editor<\/code> to create (and edit) a fan-resume.service<\/code> file under \/etc\/systemd\/system<\/code> directory.<\/p>\n
You may replace the text editor according to your desktop environment, for example, use mousepad<\/code> for XFCE, pluma<\/code> for MATE, nano<\/code> command line text editor that works in most desktops and server.<\/p>\n
Depends on what you want to do, you may replace the file-name fan-resume<\/code><\/b> to whatever that you want. When file opens in text editor, add following lines and edit accordingly:<\/p>\n
[Unit]\r\nDescription=Resume fan speed after waking up\r\nAfter=suspend.target\r\n\r\n[Service]\r\nType=simple\r\nExecStart=\/usr\/bin\/bash -c \"echo level 1 | tee \/proc\/acpi\/ibm\/fan\"\r\n\r\n[Install]\r\nWantedBy=suspend.target<\/pre>\n
The lines above tell to trigger the action after waking up from suspend. You may replace the 2 suspend.target<\/b> with:<\/p>\n