If the brightness controls on your Toshiba laptop are non-responsive, the procedure described below will most likely fix it:ġ – Shut down the laptop and unplug all cables and external adapters, including the AC power adapter.Ģ – Shut the lid, turn the laptop over onto its back, then remove the battery.ģ – Turn the laptop back over, then press and hold the power button for a full 15 seconds.Ĥ – Turn the laptop over again, then reconnect the battery and AC power adapter, in that order.ĥ – Press and release the power button, then begin tapping the F2 key until the Setup utility loads. I have worked on several Toshiba laptops recently that seem to share a common problem: The function keys that lower and increase the screen brightness (usually Fn+ F6 and Fn+ F7) have stopped responding.
