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While logging in initially the screen doesn't show problems but soon as time moves after some minutes horizontal lines start appearing in the bottom of screen of black or multi colored that progresses till the entire area corresponding to the app dock is obfuscated... So when I shut down at this time and reopen it.. Some lines still remain and it increase like earlier and results in same... Only when I shut down for a long time.. The screen becomes normal after logging in.. But still after some minutes same issue is reproduced... Using Screenshot and analyzing the picture shows that the defect is not reproducible in Screenshot and is visible in direct display only.. Please advice

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    generally speaking if you take a screenshot of the issue and the issue is not visible in the screenshot that would likely indicate an issue with the screen hardware rather than the video card or software. You may have to take it in to an Apple Store or Mac repair shop for diagnosis – Steve Chambers Apr 15 at 16:06
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The LCD is failing, sounds like. You've essentially already proved this by taking a screenshot that does not display the issue you are seeing (the artifacts). This happened on my SO's 2013 MacBook Air. I believe it's a fairly common issue, sorry to say.

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NOTE: I am able to write all the details based on my 2 year experience using macbook pro 13 inch.

All was ok & suddenly one day i meet Horizontal lines in bottom of macbook screen.

Here is the situation when Horizontal lines came in my case:

I heavily fire below GITHUB commands in mac terminal while working on of my project. (Note: my project location was desktop in my case)

git fetch --all git reset --hard origin/master git reset --hard origin/

then i found my macbook got freeze for seconds & start displaying those Horizontal lines.

** Solution Worked for me:**

  1. I forced shutdown mac.

  2. I pressed shift+control+option + shutdown button for 10 seconds (to force start)

  3. My mac started then i click select restart mac option from top mac icon

  4. Then i press D button for some some time time until i got window for diagnosis - follow process from here(How to use Apple Diagnostics on your Mac - https://support.apple.com/en-in/HT202731)

  5. After mac diagnosis complete i found no hardware issues with my mac & i start mac again.

  6. Since then i found no such issues.

  7. Please follow things to avoid any future issues.

PRECAUTION TO AVOID IT: I not put all in order but mostly all are important.

I turn off keyboard light, turn off auto screen display settings.

Don’t charge mac 100% all time.

Don’t put your macbook on you body. Wisely use on table.

Alway close macbook & uncheck the reopen window option ( when you shutdown mac pop will show this option.)

Don’t use heavy graphics softwares such as Adobe softwares that is out of your mac configuration.

Keep update mac as soon as new version available. - IMP

Always clean mac so it will be save from dust that goes inside & create issues.

Don’t use mac all day take some rest.

Don’t open un secure websites & movie sites that don’t support or requires video splash.

I deleted all utorrent, crome extensions, all heavy software that not use.

Don't put pressure on your mac screen while travel or in Bag.

Don’t use Apple provided widget on Desktop. (it is overlay on screen)

Don’t keep open multiple application if not need.

Don’t download softwares that supports ads (some time you end up downloading something that cause problem in your mac)

NOTE:

if you follow above you will also save yourself from following problems that other macbook pro users also getting nowadays.

  1. Youtube video blink issues - one of the issue in macbook pro

  2. Battery issues - fast buttery drain Security issue - when open un secure sites

    Macbook start up issue - one of the issue in macbook pro

    unwanted keyboard light flickering issue - one of the issue in macbook

    Mac freez / hang - one of the issue in macbook

    Audio / Voice issue - one of the issue in macbook

    not responding issue while trying to interact with applications. such as login time, surfing google.

Additionally: I am not sure but i have following observation:

1.Issues arises in my mac such as video blinking, Mac freezing, battery draining fast, V|Horizontal lines etc ...Only when i had Microsoft/Adobe/Google softwares in my mac. (Try to use Microsoft suite/ Google Drive online versions)

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