ubger.blogg.se - Imac 27 late 2013 display lines

Often it’s those third-party peripherals that get our Macs into trouble.

Mac OS X: How to install, update & uninstall appsįix Your Mac’s White (or Gray) Screen 1. Before You Do Anything Else, Check Your Peripherals!.

Factory Reset MacBooks and Macs on macOS.

MacBook Stuck on Apple Logo and Won’t Boot? Here’s a Fix.

MacBook or Mac Not Starting Up After macOS Update? How-To Fix.

Run Apple Diagnostics or Apple Hardware Test.

Launch Single User or Verbose Mode with Terminal.

Power up your Mac with the Startup Manager and select your Startup Disk Manually.

Quick Tips Try These Steps to troubleshoot and fix a Mac Stuck on White Screen

No Time? Check out our Step-by-Step Video Tutorial.

Run Apple Diagnostics or Apple Hardware Test!

How-To Create a Disk Image From Disk Utility.

Go Beyond Verbose Mode With Single User Mode.

See Additional Details with Verbose Mode.

Using Terminal in Single User Mode or Verbose Mode

How to reset NVRAM on late-2016 MacBook Pro models.

If Internet Recovery isn’t an option, try bringing up Startup Manager.

Don’t Know if your Mac has a Recovery Partition?.A Safe Boot rebuilds your mac’s Launch Database on your hard drive!.Fix Your Mac’s White (or Gray) Screen 1. Before You Do Anything Else, Check Your Peripherals!.Save your new graphic, and select "JPEG" as the format.Use the resolution of your display (in pixels) as the height and width of your new graphic.To create an all-white graphic, follow these steps: If necessary, repeat the process until the persistent image is gone.

Verify that the persistent image is gone.Turn the display brightness down (but not off) to preserve backlight bulb life.Use this as the image displayed by the screen saver.Create an all-white graphic in a graphics application such as Graphic Converter or Photoshop, and save it as a JPEG file.Then display an all-white pattern across the entire display for the same amount of time that the persistent image had been displayed on the screen. In the rare event that an image does become persistent, you can usually get rid of it by following these steps:įirst, temporarily set the Energy Saver sleep setting to "never sleep". The Energy Saver sleep feature is very useful because the backlight bulbs are turned off during periods of inactivity, which may prolong their useful life. You can prevent image persistence by using the Energy Saver sleep feature to turn off the display when it is not in use or by using the Screen Saver to make sure that a static image isn't on the display for long periods of time.