I used to be able to toggle between the external and built in monitors on my laptop by using Fn+F5. For some reason I can no longer switch. If an external monitor is plugged in when the laptop is powered up, it'll use only the external. If not, it'll use only the built in LCD. I can no longer toggle.
Can anyone help me discover what happened and how to solve it?
Can anyone help me discover what happened and how to solve it?
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