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@@ -5,3 +5,44 @@ This page describes several useful tips and configurations that I've used.
[Thunderbird](thunderbird.md)
[Syncthing on Artix](syncthing.md)
+
+## Disabling ACPI for sleep
+
+Somtimes we cannot sleep the computer due to ACPI devices being annoying.
+To fix this, we need to disable their wakeup ability.
+
+The following command will look at the status of the ACPI devices:
+
+ cat /proc/acpi/wakeup
+
+The following command will toggle the status of the ACPI device:
+
+ echo GP12 > /proc/acpi/wakeup
+
+### Making changes persistant
+
+To make the changes persistant, we shall use a oneshot systemd service.
+
+ /etc/systemd/system/disable-acpi.service
+ ----------------------------------------
+ [Unit]
+ Description="Disable ACPI for sleeping"
+
+ [Service]
+ ExecStart=/bin/sh -c "/etc/suspend"
+ Type=oneshot
+
+ [Install]
+ WantedBy=multi-user.target
+
+The script /etc/suspend` works by disabling all devices if they are enabled:
+
+ #!/bin/sh
+
+ declare -a devices=(INSERT DEVICE LIST HERE)
+ for device in "${devices[@]}"; do
+ if grep -qw ^$device.*enabled /proc/acpi/wakeup; then
+ sudo sh -c "echo $device > /proc/acpi/wakeup"
+ fi
+ done
+