If I have a broken screen on MacBook air and have plugged in an external screen how do I boot up to the external screen because desktop only on broken screen at boot up
Hello I have a broken screen on my MacBook air and have an external screen attached via thundbolt and hdmi connection when I boot up the unit it only shows second screen on external no dock or desktop so can not see system preferences or anything, need to find a way so then when I boot up system the external automatically comes the default screen
g5 iMac, Mac OS X (10.5.8), W85270KTSDZ