Unable to disable wake from mouse and keyboard

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Usually: Go into your UEFI Settings and disable" wake up by usb inputs" at the power management section. The option can be called differently.

If not possible, then here is a more reliable version of your script:

#!/bin/bash
# Toggle wakeup device (enabled/disabled)
echo "XHC" > /proc/acpi/wakeup
# If enabled, it will be disabled or if disabled, it will be enabled.

Check to which address path it is symlinked to:

file /sys/bus/usb/devices/*

For example: 0000:00:14.0
and compare with:

cat /proc/acpi/wakeup

Adjust “XHC” above.

You can also use something like that:

while read line
do 
   mapfile -t -d' ' <<<"$line"
   [[ "${MAPFILE[2]}" == '*disabled' ]] && continue
   if [[ "${MAPFILE[2]}" == '*enabled' ]] \
   && [[ "${MAPFILE[0]}" == 'XHC' ]]; then
   echo "Disabling ${MAPFILE[3]}"
   # Uncomment the following to run it:
   # echo "${MAPFILE[0]}" > /proc/acpi/wakeup
   fi
done < <(cat /proc/acpi/wakeup | tr '\t' ' ' | tr -s ' ')
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