INFORMATION PROCESSING APPARATUS AND CONTROL METHOD

摘要

According to one embodiment, an information processing apparatus includes a first logic circuit, a second logic circuit and a controller. The first logic circuit selectively supplies either the detection signal indicating the connection of the external display to a first connector or the detection signal indicating the connection of the external display to a second connector on an extension unit to the input/output port. The second logic circuit switches between supplying the detection signal to the input/output port and cutting off the detection signal to the input/output port. The controller controls the second logic circuit to cut off the supply of the detection signal to the input/output port for a first period when the extension unit is attached or detached.

主权项

1. An information processing apparatus comprising:
a first connector configured to connect to an external display; a connecting portion configured to detachably connect to an extension unit comprising a second connector, the second connector configured to connect to the external display; a display controller configured to assign an input/output port for receiving a detection signal indicating a connection of the external display; a first logic circuit configured to selectively supply either the detection signal indicating the connection of the external display to the first connector or the detection signal indicating the connection of the external display to the second connector from the extension unit through the connecting portion to the input/output port; a second logic circuit between the input/output port and the first logic circuit and configured to switch between supplying the detection signal output from the first logic circuit to the input/output port and cutting off the detection signal output from the first logic circuit to the input/output port; and a controller configured to control the second logic circuit to cut off the supply of the detection signal output from the first logic circuit to the input/output port for a first period when the extension unit is attached or detached.