Enabled laptop mode power management control of:

laptop-mode-tools_1.52/etc/laptop-mode/conf.d/usb-autosuspend.conf

 #
 # Configuration file for Laptop Mode Tools module usb-autosuspend.
 #
 # For more information, consult the laptop-mode.conf(8) manual page.
 #
 
 
 ###############################################################################
 # USB autosuspend settings
 # ------------------------
 #
 # If you enable this setting, laptop mode tools will automatically enable the
 # USB autosuspend feature for all devices.
 #
 # NOTE: Some USB devices claim they support autosuspend, but implement it in a
 # broken way. This can mean keyboards losing keypresses, or optical mice turning
 # their LED completely off. If you have a device that misbehaves, add its USB ID
 # to the blacklist below and complain to your hardware vendor.
 ################################################################################
 
 # Enable debug mode for this module
 # Set to 1 if you want to debug this module
 DEBUG=0
 
 # Enable USB autosuspend feature?
-CONTROL_USB_AUTOSUSPEND=0
+CONTROL_USB_AUTOSUSPEND=1
 
 # The list of USB IDs that should not use autosuspend. Use lsusb to find out the
 # IDs of your USB devices.
 # Example: AUTOSUSPEND_USBID_BLACKLIST="046d:c025 0123:abcd"
 AUTOSUSPEND_USBID_BLACKLIST=""
 
 # Trigger auto-suspension of the USB deivce under conditional circumstances
 BATT_SUSPEND_USB=1
 LM_AC_SUSPEND_USB=0
 NOLM_AC_SUSPEND_USB=0
 
 # USB Auto-Suspend timeout in seconds
 # Number of seconds after which the USB devices should suspend
 AUTOSUSPEND_TIMEOUT=2