To open the pane, choose Apple menu > System Preferences, click Accessibility, then click Mouse & Trackpad. You can also select or deselect the checkbox in the Mouse & Trackpad pane of Accessibility preferences. And on very old Macs it’s Command + Control + Eject. Next steps all depend on what was successful-or not successful-after following these basic steps. To quickly turn Mouse Keys on or off, press Option-Command-F5, then select or deselect the Enable Mouse Keys checkbox. If not, on newer Macs try shortcut: Control +Option + Command + Power button. Could be something as simple as the ribbon cable being loose or just a damaged keyboard. In the terminal window type: sudo shutdown -h now. Use the arrow up/down keys to select the Terminal application from the search results. Now if none of that worked-or the key combos above were ignored-it points to a hardware issue with the keyboard itself. Press Control-Tab to get the text cursor into the spotlight window in the upper right. Your MacBook Pro will now restart with cleared NVRAM settings. I dont recommend doing this frequently, as it does not allow the OS to shut down properly. ![]() When you get into open firmware-which should look like a terminal prompt-type in the following two commands: You could use the methods mentioned by v2r, but if you just want to use the power button, you have to hold it down for a few seconds for the Mac Mini to power off. Using your Mac laptops built-in trackpad or a USB mouse, choose Apple menu > System Settings (or System Preferences), then click Bluetooth.Then select My Mouse Tab and click on the Castle icon to open its Game Settings. Choose Apple menu > System Settings, then click Keyboard in the sidebar. Launch the Logitech Setpoint application as administrator and open its Keyboard and Mouse Settings page. Tip: If your Mac has a Touch Bar, you can add the Sleep button to the Control Strip. During starup hold down the command + option + o + f keys. If you have the option on your keyboard, press Option-Command-Media Eject key.It seems a tad more daunting but not really that hard to do: Instructions on how to reset the NVRAM are here. After the second “BONG” sound let go of the keys & boot up as normal. Here are some common gestures you can use with your Magic Mouse. When you need to charge the mouse or if you need to pair it again, connect it to your Mac mini using a USB-C to Lightning Cable or Lightning to USB Cable. You will hear the Mac OS star up chime once, and then once more as it restarts form the PRAM being reset. You can use Magic Mouse anywhere within range of your computer.Immediately hold down the command + option + p + r keys.Instructions for dealing with the PRAM are here on Apple’s site ignore the title that refers to Mavericks since those instructions should work with all version of Mac OS X: If it cleared up with rebooting it might simply be an issue with your PRAM or NVRAM depending on the make/model of your MacBook Pro. ![]() That said, have you tried hooking up an external keyboard & mouse to the USB port on the machine to see what is happening? If an external keyboard and mouse work, but the built in keyboard & trackpad choke it could mean there is an underlying hardware issue. Please update your answer with the exact model number so we have more info to work off of. While you say you are using a MacBook Pro running Mac OS X 10.6.8, it’s unclear what model you are using.
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