Problems with the monitor
NOTIFICATION.
If you have a problem with your Apple monitor and it doesn't work
resolve using the information in this manual, contact
Contact your Apple Authorized Service Provider or Apple for assistance.
If you try to repair the monitor yourself and damage
it, damage of this kind cannot be repaired under limited
monitor warranty. For more information on all
For warranty issues, please contact your authorized dealer.
Apple representative or service provider.
If there is no image on the screen
Make sure your computer is turned on; If your monitor has a power button,
Make sure your monitor is turned on.
Make sure the cables are properly connected to the computer and monitor.
If your graphics card has an external power cable, make sure that
it is connected to the card and to the motherboard.
Make sure your computer is not in sleep mode. Press the power button
or any key to check if the computer will wake up from sleep mode.
Make sure your monitor's brightness and contrast are adjusted properly.
Use the brightness keys on your Apple keyboard. On some
On monitors, the buttons for adjusting brightness and contrast are located at the bottom or
on the side.
Chapter 4
There is a problem - there is a solution
Reset Parametric Random Access Memory (PRAM) by rebooting your computer
and hold down the Command (x), Option, P, and R keys until you hear again
loading beep.
If the screen image is too dark or flickering
Adjust the brightness and contrast of your monitor. Use the adjustment keys
brightness on an Apple keyboard. On some monitors, the adjustment buttons
Brightness and contrast are located below or on the side. You can also customize
brightness and contrast using the Monitors panel in System Tools
settings".
Calibrate your monitor by choosing Apple () > System Preferences.
Click Monitors, select Color, and click Calibrate. To find out
For more information about colors and your monitor, go to the Help Center.
Flickering may be caused by a nearby line
power supply, fluorescent lamp or electrical appliance, e.g.
radio, microwave or other computer. Try rearranging
electrical appliances located nearby or move the computer and monitor
to another place.
If colors appear missing or distorted on the screen
Make sure the monitor is securely connected to the computer.
Calibrate your monitor as described in the section “If the screen image is
too dark or flickering” on page 103.
Chapter 4
There is a problem - there is a solution
If after changing the screen resolution the desktop icons
are moving
Changing the screen resolution affects the information displayed.
The operating system may move icons when resolution changes
screen.
If the screen is frozen
Force quit a frozen program. Holding
Command keys (x
and Option, press the Esc key. Then select
program from the list and click “Force Quit”.
If this doesn't help, force restart your computer by holding down the
Power Press (®) for 5 to 6 seconds until your Mac Pro turns off. Click the button
Power (®) button again to turn on your Mac Pro.
If there is an indicator on the front of the monitor and it is blinking
On some Apple flat panel monitors, a series of short indicator flashes
indicates that an error has been detected.
If you see a repeating sequence of three short
outbreaks, the monitor input is receiving a video signal of the wrong format.
Make sure your monitor is compatible with your graphics card and that you have installed
proper monitor software, if supplied
The monitor included installation software.
If you see a sequence of two short and one long flashes,
This indicates a problem with the monitor's backlight. Contact
Contact your authorized Apple reseller or service provider.
Chapter 4
There is a problem - there is a solution
Screen flickering is perhaps the most annoying problem that can arise with a MacBook. If this problem exists, you can continue to work. However, even a short time spent looking at such a screen causes discomfort to the eyes. From dryness to pain in the eyes. Therefore, you should never use a MacBook with a flickering screen.
Problems can be either software or hardware. It should be noted that new generations of MacBooks are becoming more and more reliable, and MacOS updates are stable. Screen problems are becoming less and less common. But they still happen.
Let's look at the main hardware reasons that can cause the MacBook screen to flicker.:
- Problem with screen trailing. It can be broken, frayed, or simply torn. Most often, this happens during mechanical impacts on the MacBook - shocks, falls from a height. In addition to the cable itself, the contact of the cable with the corresponding connector may be damaged. To fix it, you will need to replace the cable.
- Decoder malfunction. This is a serious problem that will require replacing the entire matrix.
- Screen backlight failure. The problem is not serious and can be easily fixed at a service center.
- The problem is at the motherboard level. Perhaps the entire motherboard has failed, or there may be a malfunction of the chip responsible for video output.
What to do? How to fix the problem?
We noted above that the problem can be caused by both software and hardware. Therefore, first of all, you should check all the settings and download all the updates. There may be some software causing the problem. This becomes immediately clear if the screen flickering on a MacBook occurs after installing new applications.
If the software part turns out to be in order, then the problem should definitely be looked for in the hardware part. As mentioned, most often this is a problem with the motherboard.
First of all, you should check the cable. In fact, cables are one of the most fragile elements of modern technology, not excluding the MacBook. Even a slight mechanical impact can cause a break in the cable or damage to the contacts at the point where the cable is connected. In fact, this is a known and easily fixable problem that will not take much time at the service center.
It's more difficult if the display decoder in your MacBook breaks. Apple has not provided for a replacement decoder for the MacBook. Therefore, in the event of a malfunction, you will need to change the entire MacBook matrix. It's expensive and inconvenient, but there is no other choice.
It is much easier and cheaper if the malfunction occurs at the graphics adapter level. This reason is easily determined by simple tests and can also be easily eliminated. It should be noted that in service centers almost no one changes individual chips on a graphics card; this is a very complex and time-consuming process. Most often, the entire adapter is replaced.
Professionals at Service-Apple are among those units that can and do carry out such a replacement of chips. And not only individual chips, but also other elements of the adapter, such as the contact base. These procedures will significantly reduce the cost of repairs, and in terms of quality, the adapter after repair is indistinguishable from a new one.
External screen flickering
If the MacBook's own screen works stably, but only the external screen flickers, the causes of the problems may lie elsewhere. Moreover, the reasons may not even be in the MacBook. They can be in connecting cables (HDMI, Thunderbolt) or in a connected external monitor.
If all connected cables and the monitor are in order, but the flickering does not stop, then you should look for the root of the problem in discrete graphics. That is, in the adapter, which is responsible for processing the video signal when connecting external devices.
In addition, the reason may be hidden in the connectors for connecting HDMI/Thunderbolt cables. The connectors may be clogged with foreign debris or defective. It also happens that connectors break due to mechanical stress or due to a voltage drop.
Fixing this problem will require the help of service center specialists. Only they will be able to determine the real cause of the MacBook screen flickering and provide qualified assistance in fixing the problem.
Our service center does it even if the screen flickers!
Fair, not overpriced and not underestimated. There should be prices on the Service website. Necessarily! without asterisks, clear and detailed, where technically possible - as accurate and concise as possible.
If spare parts are available, up to 85% of complex repairs can be completed in 1-2 days. Modular repairs require much less time. The website shows the approximate duration of any repair.
Warranty and responsibility
A guarantee must be given for any repairs. Everything is described on the website and in the documents. The guarantee is self-confidence and respect for you. A 3-6 month warranty is good and sufficient. It is needed to check quality and hidden defects that cannot be detected immediately. You see honest and realistic terms (not 3 years), you can be sure that they will help you.
Half the success in Apple repair is the quality and reliability of spare parts, so a good service works directly with suppliers, there are always several reliable channels and your own warehouse with proven spare parts for current models, so you don’t have to waste extra time.
Free diagnostics
This is very important and has already become a rule of good manners for the service center. Diagnostics is the most difficult and important part of the repair, but you don't have to pay a penny for it, even if you don't repair the device based on its results.
Service repairs and delivery
A good service values your time, so it offers free delivery. And for the same reason, repairs are carried out only in the workshop of a service center: they can be done correctly and according to technology only in a prepared place.
Convenient schedule
If the Service works for you, and not for itself, then it is always open! absolutely. The schedule should be convenient to fit in before and after work. Good service works on weekends and holidays. We are waiting for you and working on your devices every day: 9:00 - 21:00
The reputation of professionals consists of several points
Company age and experience
Reliable and experienced service has been known for a long time.
If a company has been on the market for many years and has managed to establish itself as an expert, people turn to it, write about it, and recommend it. We know what we are talking about, since 98% of incoming devices in the service center are restored.
Other service centers trust us and refer complex cases to us.
How many masters in areas
If there are always several engineers waiting for you for each type of equipment, you can be sure:
1. there will be no queue (or it will be minimal) - your device will be taken care of right away.
2. you give your Macbook for repair to an expert in the field of Mac repairs. He knows all the secrets of these devices
Technical literacy
If you ask a question, a specialist should answer it as accurately as possible.
So that you can imagine what exactly you need.
They will try to solve the problem. In most cases, from the description you can understand what happened and how to fix the problem.
Since the new MacBook Pro models went on sale last month, a significant number of early adopters have reported serious graphics problems with the new products. Most often the messages concerned the 15-inch models assembled in the configurator, but they also talked about the standard 13-inch and 15-inch versions.
For example, one of the visitors to the MacRumors portal reported that his brand new 15-inch MacBook Pro of the highest configuration, equipped with an AMD Radeon Pro 460 graphics card, began to demonstrate various graphics artifacts when encoding video using Adobe Media Encoder. It got to the point where the laptop eventually froze completely.
The reader reported that when he took his laptop back to the Apple store, where he wanted to replace it, the store employee told him that, most likely, the cause of all the problems was hidden in the hardware. The person later stated that engineers from Apple's headquarters in Cupertino called him and tried to understand in more detail the details of the problems that had arisen.
“Apple called me from Cupertino. They assembled a team of engineers to get to the root of the problem. I recreated the conditions under which my laptop crashed while on the phone with company employees, and then sent the log files of the “crashed system.” They also said that they would like to receive my MacBook Pro with all the files on it to better understand the issue.”
The main “symptoms” reported by owners are associated with colored screen flickering, blurring of the picture, appearance of the picture in the form of colored squares and other graphic artifacts. Some of the laptops affected by these problems end up freezing completely.
Example of full-screen graphics artifacts on a 15-inch MacBook Pro with AMD Radeon Pro 460 graphics
The reports most often concern 15-inch MacBook Pro models with Touch Bar and AMD Radeon Pro 460 graphics cards, but several people have reported that similar problems are occurring on 15-inch models equipped with standard AMD Radeon Pro 450 or AMD Radeon Pro 455 chips.
Another MacRumors reader shared a video of a flickering MacBook Pro with AMD Radeon Pro 455 graphics installed and two external LG monitors connected.
It remains unclear whether this problem is software or actually hardware. Problems most often arise when users run video decoding apps like Adobe Media Encoder, or try to sync their large photo libraries with the Photos app, or use other Adobe apps like Photoshop and Lightroom.
Separately, it is worth highlighting messages that indicated flickering and graphic artifacts when launching new MacBook Pro models. Most often, owners marked them at the bottom of the screen. Later it turned out that the FileVault 2 function was to blame. Disabling this function in the settings solves the issue.
So far, all indications are that the 15-inch MacBook Pro models with discrete graphics are most likely to experience problems, but there are several reports of problems occurring with 13-inch models with integrated Intel Iris 540 and Intel Iris 550 graphics, including the new 13 -inch model with standard function key layout.
It should also be noted that not all owners of new Macs encounter these problems. Some MacRumors readers assume and hope that the reason for everything lies in the operating system and a “hot patch” can fix it.
It should also be recalled that some MacBook Pro models from 2011-2013 have experienced similar issues in the past. Then there was talk about video distortion, its complete absence and unexpected system reboots. Apple responded by offering a free laptop repair program as well as full refunds. However, this did not happen until a class action lawsuit was filed against it by the owners.
Most likely, Apple is already aware of the problems that have occurred, but has not yet officially commented on them. Users report that company representatives are calling owners of problem laptops. The matter is accelerated by direct calls to the Genius Bar and Apple Support.
In one of the previous articles, I wrote about what steps should be taken. I think it would be fair if a similar article appeared about the MacBook.
After all, what could be worse than the situation, when your MacBook won't boot, and you clearly realize that all your information remains on it, the accumulation of which was spent hundreds of working hours.
In this article, I will outline an emergency action plan when your MAC flatly refuses to start. It is not at all necessary to perform absolutely all of the above steps. But we still need to act.
If your MacBook won't boot or freezes on boot, it could be due to:
- problem with hardware (HDD, memory, controller, processor, etc.);
- problem with OS X (for example, upgrading to El Capitan)
- newly installed hardware (disconnect all USB devices)
As in the case of an iPhone that won’t turn on, the first thing to do is make sure that the MacBook’s battery is not simply discharged or the charger has not failed.
If something is still displayed on the screen or even the boot process begins (which ends up stuck on a spinning disk or even breaks down), you should try following the steps described below in the order they appear.
- If your MacBook is completely frozen and requires a reboot -
- Need to create a bootable USB flash drive with OS X?
- MAC stuck on white screen after updating OS X -
- Read more about different boot modes -
- You don’t know what the screen that appears when you boot your MAC means -
STEP 1: Boot into Safe Mode
First, you should try booting your MacBook into Safe Mode, which limits the scans and downloadable functionality your Mac performs at startup. I don’t guarantee that after starting in this mode, your MAC will suddenly start working as before, but it’s still worth a try.
Turn off your MacBook and then turn it on while holding down the shift button. Booting into Safe Mode may take a long time (if your computer boots at all), so be patient.
If you want to know what exactly happens when you boot into Safe Mode, you can boot your MacBook by holding down the shift + Command + V buttons, which in turn will launch Safe Mode + verbose mode on your MAC.
Verbose mode is an optional operating system boot mode (including OS X, Windows, Linux), in which detailed information about loaded drivers, software and processes that occur when the computer boots is displayed on the screen.
Be patient and careful while booting your MacBook. If your computer does boot into Safe Mode, try simply restarting it from the Apple top menu.
If the MacBook now boots up in the usual way, we will assume that the situation has been corrected and now everything is fine. If the MacBook does not boot, proceed to the next step.
STEP 2: Download Disk Utility
There can be a lot of reasons why a MacBook freezes when loading. But let us check now and then discard or try to fix the reason related to your MAC hard drive problems. The easiest way to check your hard drive is to run Disk Utility(Disk Utility).
The first step is to turn off your MAC. If MacBook stuck on gray (white, blue, pink...) screen with a spinning disk, you need to force it (the computer) to turn off. To do this, press and hold the power button for 5-8 seconds.
To launch Disk Utility, you need to get into OS X recovery mode. To do this, hold down Command + R when you turn on the computer.
If everything went well, you will be taken to a screen with a title MAC OS X Utilities(see picture below). On this screen you need to click on “ Disk Utility» (Disk Utility).
Then click on the name of the built-in hard drive on the left side of Disk Utility and start the verification process by clicking on Verify Disk on the lower right side of the screen. Wait for the verification to complete.
If any problems are found, you will be prompted to correct them. Confirm your intentions by clicking on Repair Disk. After that, try restarting your MacBook again.
STEP 3: Target Disk Mode
As the saying goes, “it’s better to have a bird in your hands than a pie in the sky.” How are you doing with data backups? Well, the data that was stored on your MacBook... And now it won’t start... Sadness!
If data loss on your MacBook doesn’t particularly worry you, skip straight to the next step. But if you are now in a cold sweat trying to remember whether you copied anything valuable to other disks or flash drives, then here is another gift from Apple for you - EXTERNAL DRIVE MODE.
Target Disc Mode is a special boot mode unique to MAC computers that allows you to access your computer's hard drive without booting into OS X.
Using this mode, you can save data when your MacBook does not boot for any reason.
To launch external drive mode and gain access to the contents of the MacBook hard drive, do this:
- We find another MAC computer. If you don't have one personally, ask your friends
- Connect both Macs using a Thunderbolt cable
- Turn off your MAC. If necessary, hold down the POWER button for more than 5 seconds
- Hold down the T button immediately after turning on the MacBook and hold it until the Thunderbolt icon appears on the blue screen.
You just launched External Disk Mode. This mode, roughly speaking, turns your MAC into an external hard drive. If everything went smoothly, your friend's MAC will show an additional external hard drive in Finder. Now copy and save everything you need.
When you're done with the drive, you'll need to eject it into the Finder like any other device. After that, disconnect the Thunderbolt cable and turn off your MAC computer (by holding down the power button for more than 5 seconds).
STEP 4: Reinstall OS X
If none of the previous steps brought “relief,” all that remains is to reinstall the OS X operating system. To do this, you need to boot the computer again in recovery mode, well, remember as in step 2. To do this, turn on the computer while holding Command + R.
Wait for OS X Utilities to load and select from the list Reinstall OS X. Follow the onscreen instructions until you completely reinstall the operating system.
If your MAC has not mastered the installation of OS X or has been running on a fresh operating system for a short time, most likely there are some more serious problems with your MAC.
Such problems may occur due to recently installed new hardware (memory, hard drive, etc.). Check your new hardware for compatibility with your computer.
If you have not installed anything on your MAC, you need to check the existing modules (hard drive controller, memory modules, etc.). But it is better to entrust such checks to service center specialists.
