Toshiba M640-BT2N23 User Manual page 168

168
Utilities
USB Sleep and Charge Utility
(Sample Image) TOSHIBA USB Sleep and Charge Utility screen
NOTE
With certain external devices, the USB Sleep and Charge function
may not work no matter which charging mode you select. In those
cases, disable USB Sleep and Charge in the utility and turn the
computer on to charge the device, or use a different charging device.