Set HDTV to non-scaled display mode. Apple Display Troubleshooting If the power light on your Apple flat-panel display is flashing If you changed your display's resolution and now there's no picture Apple computers: Black screen or unresponsive Mini DisplayPort display after sleep now archived Includes note to make sure Mini DisplayPort adapters are Vesa 1. FYI: If you have a or later Mac mini with FileVault enabled and the display doesn't wake from safe sleep, this apple doc says a workaround is to type in your password despite having no video , which will log you in and wake the display.
Sometimes it's temporary but often not. They do this so often it's frustrating. I wish they would list docs like this as archived instead of removing them. If you're using a inch MacBook Pro from or later, always plug eGPUs and other high-performance devices into the left-hand ports for maximum data throughput. Article also has notes on app support and link to developer page on coding apps to support eGPUs. As of Jan 17, revision, the article title and text still has "Hz", which should be " K Hz". Page has a workaround and a terminal command for Early and older macs to restore function with needing special keypresses at every boot.
As of August , article is 'archived, no longer updated'. What to do if Thunderbolt Firmware Update 1. Includes notes this may be caused by having a self-powered Thunderbolt device connected when the update is applied. Article now archived. The public release of macOS Includes steps to resolve.
How to Install macOS Reports on other graphics card models are also welcome of course. Fusion Drives and hard disk drives HDDs aren't converted. My monitor sees my iMac telling me signal is received, but indicates weak signal and displays black. Reboot used to fix. Turning TV off and on also fixed, as did selecting another input and then back to Mac. Changing cable no effect. TV is brand new and it worked flawlessly until the last Mac security update was installed, and now once I manage to get it to work, if the computer goes to sleep, it wakes up without the second monitor.
The only other symptom is that my mac randomly blanks out the main display as if power saver kicked in, and I have to touch the power button to get it back, though the second screen continues to work fine. Now the next day, no luck.
So now you have to hold a keyboard key to make a feature visible that was always visible before? Do the software developers just want to torture us? Tell me again why Apple is superior to PCs. Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited.
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How To Use Your Apple TV as a Second Display in OS X Mavericks
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How to Detect Displays on a Mac with OS X El Capitan, Yosemite, Mavericks
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Three Ways to Mirror iPhone to Mac Easily & Successfully
Robin says:. June 18, at am. Paul says:. Apple says that Mavericks can make a Mac 1. Notifications become more useful in Mavericks, you can now reply to messages, tweets and email from within the notification itself. Owners of multiple monitors or an Apple TV will like Mavericks. You can have multiple app windows running on either display or run full-screen apps on each one.
Turning this feature on lets you store and sync your passwords, credit-card numbers and personal contact info, making it easy to log into websites on the Mac and iOS, and fill out online shopping carts. Safari also comes with a new random password generator which will create a hard to guess, but difficult to remember password, which it will then help you to remember in Keychain. OS X Page 1 of 1.