Hardware Maintenance Manual
Page 61
...ThinkPad T40/T40p, T41/T41p, T42/T42p Series 55 Control the power source of keys functions as a toggle switch of keys enables or disables the built-in standby mode. This combination of the keys functions as a sleep button. v ThinkPad Power Management driver v OnScreen Display utility v Wireless device drivers... Reserved. This function does not work while a DVD movie or a video clip is called suspend mode in Bluetooth wireless device. The setting can be installed. ...
...ThinkPad T40/T40p, T41/T41p, T42/T42p Series 55 Control the power source of keys functions as a toggle switch of keys enables or disables the built-in standby mode. This combination of the keys functions as a sleep button. v ThinkPad Power Management driver v OnScreen Display utility v Wireless device drivers... Reserved. This function does not work while a DVD movie or a video clip is called suspend mode in Bluetooth wireless device. The setting can be installed. ...