vertical line on macbook air screen

How-To Fix Vertical Line on Macbook Air Screen

In iReview by andre25 Comments

Yesterday I suddenly discovered a vertical line on my Macbook Air screen towards the left side of the display. The red, one pixel line simply showed up when I opened the laptop while traveling in the morning…

I tried a couple fixes, some people even suggested the problem is caused by hardware failure. Fortunately the solution was quite simple, resetting the PRAM. Simply restart your computer while holding Command+Option+R+P simultaneously BEFORE the grey screen appears and UNTIL you hear an additional chime, release and voila, no more line.

Image Credit:
Paul Hudson


  1. It didn’t work for me! I tried it like 10 times and I did a hardware test that showed no results. My line is red and not black so it seems the pixels aren’t dead.

    1. Author

      The key located between the “command” and “control” keys on your keyboard is the option key. On my keyboard it actually says “Option” on it 😉 It may also say “alt” on it.

  2. cmd+shift+r+p decreased the size of the line, but didnʻt get rid of it.

  3. Tried command +opt+r+p after pressing power on but didn’t worked for me.please suggest

  4. “Command+Option+r+p” as soon as I pressed power on my Macbook Pro (after having shut down) is what worked for me!

  5. Hi there…i have done and followed all of the above but still i have a vertical red line on the right side of the screen….. any help would be much appreciated

    1. Author

      Hi Simon,

      Sorry to hear that this is still a problem for you. I remember having to do this several times before that annoying line was finally gone. Other users have experienced the same…

      If you still can’t get rid of the red line it could be faulty hardware. I’d run a hardware test to see what comes up. Your last resort is Apple support. The Genius Bar is free, so if you live close enough to an Apple store I would definitely give that a try. Their Geniuses can also steer you towards the best repair option if that should become necessary.

      Good luck!

  6. u have to hold cmd option+ r+ p hold for multiple chimes not just once i did it for 4 chimes and it fixed my vertical line problem problem

  7. cmd + shift + R + P brings you to OS X Utilities, which was NOT what I needed. cmd + option + R + P did bring multiple chimes, but didn’t solve my vertical lines problem. 🙁

    1. Author

      Hi Isabella and thank you for stopping by. Sorry to hear the solution didn’t fix your problem. You are correct; you need to press cmd+option+R+P to reset the PRAM. This simple fix can resolve most issues but not all.

      I hope you’ll find a solution. If you do, it would be great if you let us know what finally solved the problem!

  8. Author

    You are correct, Command+Option+R+P resets the PRAM, and I have updated the post to reflect that. Thanks for pointing it out.

  9. No – on my MacAir with OSX 10.9.4 its: cmd+alt+R+P. The screen then goes black and the machine restarts – until one releases these keys.

    Unfortunately, it does not help against the “vertical lines(s) problem”.

    1. Author

      Hi Bob!

      I am really sorry to see that this fix didn’t work for you. I was running the same OS version on a 2010 MBA when the problem occurred and the solution described above completely fixed whatever was wrong 😉

      Let us know how you finally fixed the problem, so we can amend this post!

      Good luck!

  10. should’nt it read “press cmd+shift+R+P” instead of “press ctrl+shift+R+P”?

      1. Hey i did not do anything
        I just left couple of days aside and didn t use the device at all
        Appearently liquid that was inside just dissapeared.

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