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Screen blinks every 10 seconds

After turning on my Macbook Air 13" (OSX El Capitan), for a while the screen 'blinks' every 10 seconds and causes any open applications to be pushed into the background. When videos are open to full screen, the dock can be seen refreshing. I've seen very few other threads that are may be similar to my issue but it seems that there hasn't been an effective solution. I've run a diagnostic but nothing showed up.

When you see the screen flashing, note the exact time: hour, minute, second.  

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Launch the Console application in any one of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

The title of the Console window should be All Messages. If it isn't, select

          SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

          View ▹ Show Log List

from the menu bar at the top of the screen.

Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.

Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.

Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name, may appear in the log. Anonymize before posting.

When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

If you have an account on Pastebin, please don't select Private from the Paste Exposure menu on the page, because then no one but you will be able to see it.

4/01/2016 9:30:53.203 am AirWatch Agent[525]: void AgentReadCallback(NSData *__strong, NSFileHandle *__strong) [Line 1096] Agent received message of type 140

4/01/2016 9:30:53.222 am AirWatch Agent[525]: -[AWAgentController isCurrentUserManaged] [Line 221] Current User is managed

4/01/2016 9:30:53.234 am AirWatch Agent[525]: Server Starting new loop for data

4/01/2016 9:30:58.582 am com.apple.xpc.launchd[1]: (com.papercut.client.agent[30039]) Service exited with abnormal code: 1

4/01/2016 9:30:58.582 am com.apple.xpc.launchd[1]: (com.papercut.client.agent) Service only ran for 1 seconds. Pushing respawn out by 9 seconds.

4/01/2016 9:31:03.340 am AirWatch Agent[525]: void AgentReadCallback(NSData *__strong, NSFileHandle *__strong) [Line 1096] Agent received message of type 140

4/01/2016 9:31:03.364 am AirWatch Agent[525]: -[AWAgentController isCurrentUserManaged] [Line 221] Current User is managed

4/01/2016 9:31:03.374 am AirWatch Agent[525]: Server Starting new loop for data

4/01/2016 9:31:08.137 am com.apple.xpc.launchd[1]: (com.papercut.client.agent[30047]) Service exited with abnormal code: 1

4/01/2016 9:31:08.137 am com.apple.xpc.launchd[1]: (com.papercut.client.agent) Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

4/01/2016 9:31:13.288 am AirWatch Agent[525]: void AgentReadCallback(NSData *__strong, NSFileHandle *__strong) [Line 1096] Agent received message of type 140

4/01/2016 9:31:13.312 am AirWatch Agent[525]: -[AWAgentController isCurrentUserManaged] [Line 221] Current User is managed

4/01/2016 9:31:13.326 am AirWatch Agent[525]: Server Starting new loop for data

4/01/2016 9:31:19.415 am com.apple.xpc.launchd[1]: (com.papercut.client.agent[30055]) Service exited with abnormal code: 1

4/01/2016 9:31:19.415 am com.apple.xpc.launchd[1]: (com.papercut.client.agent) Service only ran for 1 seconds. Pushing respawn out by 9 seconds.

4/01/2016 9:31:23.309 am AirWatch Agent[525]: void AgentReadCallback(NSData *__strong, NSFileHandle *__strong) [Line 1096] Agent received message of type 140

4/01/2016 9:31:23.332 am AirWatch Agent[525]: -[AWAgentController isCurrentUserManaged] [Line 221] Current User is managed

4/01/2016 9:31:23.343 am AirWatch Agent[525]: Server Starting new loop for data

4/01/2016 9:31:28.882 am com.apple.xpc.launchd[1]: (com.papercut.client.agent[30063]) Service exited with abnormal code: 1

4/01/2016 9:31:28.882 am com.apple.xpc.launchd[1]: (com.papercut.client.agent) Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

4/01/2016 9:31:34.053 am AirWatch Agent[525]: void AgentReadCallback(NSData *__strong, NSFileHandle *__strong) [Line 1096] Agent received message of type 140

4/01/2016 9:31:34.076 am AirWatch Agent[525]: -[AWAgentController isCurrentUserManaged] [Line 221] Current User is managed

4/01/2016 9:31:34.086 am AirWatch Agent[525]: Server Starting new loop for data

Previous threads I read suggested it could be issues with Google Drive Help but I now see that it must be AirWatch, although I can't delete it as I need it for school. What can I do to diminish the problem?

I don't know what "AirWatch" is. It's writing a log of log messages, but that's not necessarily abnormal. "PaperCut," on the other hand, is crashing every few seconds. You should either remove it or refer to the developer for support or an update.

Any third-party software that doesn't install from the App Store or by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.

Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.

I never install system modifications myself, and except as stated in this comment, I don't know how to uninstall them. You'll have to do your own research to find that information.

Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button. The uninstaller might also be accessed by clicking the Customize button, if there is one.

Back up all data before making any changes.

You will generally have to restart the computer in order to complete an uninstallation. Until you do that, there may be no effect, or unpredictable effects.

If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.

Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

I Have Ipad mini, 64 GB , Screen pf ipad is blinking every 5 seconds, hence i am unable to use it. Pl guide me.factory reset also done however problem not resolve.

最后更新：2017-09-16 23:08:16

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