LCD Failures

Hardware failure – LCD, inverter, cable or backlight


  • The laptop appears to start as usual but the screen is black, if you move it, it turns on and works properly. Failed cable.
  • The laptop appears to start as usual but the screen is very dark, although it changes colour a little and you can see a very feint image. Failed inverter or cable 90%/10%.
  • Immediately after starting the screen has dark pink/red tint and turns dark after a few seconds. Failed backlight.
  • The screen flickers a few times but then turns dark, if you move it or tap it lightly on the sides, it flickers again. Failed cable or LCD 50%/50%.
  • Screen is either black or white (no picture) and external monitor works. Failed cable or LCD 30%/70%.
  • There are stripes on the screen (either vertical or horizontal) that change when you move the screen or tap it lightly on the sides. Failed cable or LCD 10%/90%.

In all above cases, if you plug in an external monitor, everything shows fine on it (you have to plug it in before starting the laptop and may need to press the “Fn” key together with one of the “F1” – “F10” keys to make the laptop recognize the external monitor).


If the screen is black, look for the “lid closed” switch and try pushing it a few times. It’s usually a small switch near the hinges that is pressed when the lid(the screen) is closed. Sometimes these switches get stuck in the “lid closed” position that results in black screen(no backlight) or non-starting laptop. Also some laptops have a magnetic switch (newer Dells, most Macs, etc.) that doesn’t get stuck.

The most common failures are (in this order): inverter, “lid closed” switch, cable, LCD, backlight.

248 thoughts on “LCD Failures”

  1. Hey guys most of you have a display issue. Need to get a new display if you are able to see everything normal using a second monitor. In the mean time please do the following to see if this solve your issue.
    Remove power cable and battery from laptop. Press the power button and hold it for 30 seconds or more. Plug the power cord into the laptop and see if this solve your problem.

  2. Hie I have a lenovo G580 and when I am using it the screen starts showing horizontal and vertical lines about 2mm thick of different colours and the computer freezes. If i restart it starts working properly. Please help.

  3. Hi, my laptop’s screen appears to be black when I turn it on. It didnt experience any shock though. What should I do?

  4. I have a Lenovo G570, and the screen is completely white when I turn it on. I hooked it up to an external monitor, and it works. I checked the video cables, but the seem to be in place, Then I unplugged them from the monitor then re-plugged them, but the screen is still white. My thought is that I need to replace the cable, but I really don’t have a clue about what to do. I’ve heard that it could be a problem with the motherboard, but I’ve had no problems with the laptop other than the white screen, and it’s been hooked to my external monitor for about two months.

  5. I have a Gateway 17.3″ laptop, it’s about 5 years already. A few months ago, it had a black screen issue and I had a hard time recovering it. The issue was eventually resolved when I discovered a built-in recovery method. It worked properly after, except that there is about 5-second black screen on start up. It also started to overheat quickly, so I decided to get an external fan. A week ago, a horizontal line appeared at the taskbar which I ignored. Yesterday, as I wass using it, it turned off a couple of times until I decided to let it cool down first. When I turned it back on today, I noticed that a strip (about 1cm) of the screen is not aligned [on the top part]; a strip (about 1cm) of the screen is also missing. I also noticed that the horizontal line I ignored a week ago, became 4-5 horizontal lines which caused the task bar to move up (also about 1cm). The screen also starts shaking. What could be the problem?

  6. My laptop appear to be shown green checkered box all over the screen then turns black, and then when i try restart my laptop it appear to be the same, black screen all over it. but when i plugged it on another moniter its appear to be fine. Please help me solves this problem

  7. hi, my screen on my laptop at the beginning instead of beng black with the start up its white then it goes to a dark reddish colour when on it and s very difficult to see also i cant read white writing as its turned colourful.
    Please help, what should do?

  8. My n5010 has an issue that when the screen is moved it freezes until you tap the center of the screen or bent it slightly to produce tension in the center of the screen. i have already replaced the wire thinking it was that. should i replace the screen.

  9. Hi,
    I have a Compaq CQ58 Notebook PC and earlier this morning it was working fine then later i turned it on and the screen was…sort of disoriented a third of the screen displays fine but the other part is freaking out.

    Please someone reply when they can thanks.

  10. Hi,
    There a vertical line on the left side of the screen of my sony laptop.Plesae help me how can I come out with this problem?Thanks

  11. Hello, I have an ideapad Z400 Touch Lenovo and I am having a problem with LCD screen turned to dark. I have tried to turn it to brighter but still look dim. I barely see what is on the screen as it is too dark. When i plugged in to external monitor, it works well.
    Please assist me on this problem.

    Thanks xx

  12. Hii..I have dell laptop given by shehbaz sharef..when I started it today it went ok but suddenly its screen went black but laptop was not off thn I restart it several times but it doesnt work except one time it start normaly thn vertical white lines appear on it and it stcks and after that it again got black..plz tell me whats the problem I have a alot of work to do and now I am helpless :'(

  13. Hi I have a Acer V5-571PG and when I turned the laptop on it was black I turned it off then on with no result I have press Fn 7-Fn 10 also have a mouse I attached that doesn’t work does that mean the motherboard is the problem?

    Thanks Sandra

  14. Hi everyone! I have a Dell Inspiron 1420 laptop that shows the Dell startup screen for a solit second in red for a split second and goes to black. I know it works because sometimes the log in screen pops up when I close the lid and reppen it. What do you think is the cause’ of this? Please help me!!

  15. my laptop is Compaq presario cq40 i have a problem with my display when i open laptop there is lines running vertically in the screen even i can hear sound windows open but not able to view. is its cable problem or the display problem? plz reply fast help help

  16. screen problem lenovo E520
    My screen started to have problems with colours. (oranges became blue) by adjusting the screen slightly I could fix this.
    over time this problem became worse, and when the screen did not show correct colours the mouse does not work. Now the screen has gone grey, without an image, with slight widely spaced vertical stripes and it is very difficult to even get a start up screen.
    Laptop works perfectly when attached to an external monitor.
    Please can anyone diagnose the fault or point me in the right direction?

  17. most of these problems can be fixed by jiggling the wires that connect the screen to the rest of the laptop, it’s just loose cables. as for the screen cracked by the usb cord, all you can do to fix it is buy a new screen. they’re only about $50 which isn’t much considering the price of a laptop.

  18. i have acer mini-laptop but when i turn it on,it starts well but later i can’t display well as well as showing the horizontal lines. what can i do? I have connected it to extern monitor it worked.

  19. Hello ,
    my hp pavilion the problem is when i on the labtop than i see very slite picture in the screen but when i attached the other moniter lcd than there is no problems
    please give me next

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