![]() ![]() Enter the four-digit or six-digit passcode to continue.Ī large Thunderbolt, USB, or FireWire symbol against a dark background means that your Mac is in target disk mode. Your Mac might ask for a PIN code when it has been remotely locked using Find My because the owner thinks the Mac is lost or stolen. If your previously owned Mac shows an Activation Lock window that asks for someone else's Apple ID, the previous owner may need to remove Activation Lock for you. Learn what to do if you forgot your login password. Your lock screen looks similar and uses the same login password, but doesn't provide password-reset options. If you're still logged in to your user account, you might see your lock screen instead. The login window appears only after you log out of your user account (Apple menu > Log Out) or restart or start up your Mac. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account. If FileVault is turned on, this also unlocks your disk. Login windowĪt the login window, enter your user account password to log in to your Mac. If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Learn what to do if your Mac starts up to an exclamation point in a circle. Learn what to do if your Mac starts up to Options with a gear icon, also known as startup options. Learn what to do if your Mac starts up to a blank screen, such as an empty gray, black, or blue screen. Learn what to do if your Mac starts up to an Apple logo or progress bar. Learn what to do if your Mac can't start up from macOS Recovery. Globe with warning symbolĪ globe with a warning symbol (exclamation point) means that your Mac tried to start up from macOS Recovery over the internet, but couldn't. Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol). Learn what to do if your Mac starts up to a question mark. You can also try connecting your monitor or cable to an HDCP-encrypted device such as a Blu-ray player or set-top box.If your Mac doesn't start up all the way or needs you to do something during startup, it might stop at one of these screens. ![]() To start the conversation again, simply ask a new question. Browse Search Sign in Sign in Sign in corporate Mac / MacBook Pro Looks like no one’s replied in a while. Local Nav Open Menu Local Nav Close Menu. Most manufacturers will specify whether or not the monitor or cable is HDCP compliant. Mac iPad iPhone Watch AirPods TV & Home Entertainment Accessories Support 0 + Community. (If you're not sure whether your equipment is HDCP compliant, look for the HDCP logo on the monitor or cable itself, or check the specifications list. If you have an old monitor or cable, replace them with newer HDCP-compliant ones. Check your setup is HDCP compliant: Ideally, use the HDMI or DVI cable supplied with your monitor. ![]() Connect directly to your monitor: Try connecting your cable directly without using a USB hub or docking station.(It isn't possible to do this in Safari, so try switching to another browser instead.) Disable hardware acceleration within browser: In your browser settings, try disabling hardware acceleration.Connect to external monitor first before playing out: The first thing to try is simply hooking up to your monitor before you hit play, instead of connecting once you've started streaming. ![]()
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