Screen not displaying despite backlight being active.

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HP OMEN 15-ax280nd

The HP OMEN (model number 15-ax280nd) is a personal computer released by Hewlett-Packard (HP). This model was released in 2016.

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Georgia @georgia76645

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投稿日: 2023年9月26日

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Screen not displaying despite backlight being active.

So I've had my laptop for a while now and today has been the first time this has happened, which is rather worrying for me.

My laptop screen was working just fine as I was online, but in the middle of my game it's suddenly cut out and gone to a black screen. The back light for the screen still is working and the laptop itself seems to be running fine, but aside from that it's just a blank screen which doesn't even display my mouse.

I've tried most of the software things I can think of like a hard reset, but it hasn't sorted things out and I don't know why this is happening. Could it be a hardware thing?

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Can you try hooking it up to an external monitor? That would help diagnose whether it's a motherboard/GPU issue or a display issue.

Jerry Wheeler さんによる2023年9月26日

Okay so I just gave that a try, and it works with my pc's monitor yeah! Does that mean it's a display problem?

Georgia さんによる2023年9月26日

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Jerry Wheeler @dadibrokeit

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投稿日: 2023年9月26日

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Hi Georgia,

Yes, in terms of fixing your laptop, this is a good sign. Yes, it does indicate there's a problem with your display so it is fixable.

Now as to exactly what part of the display is the problem would be the next thing to try and figure out. We frequently see problems with the cables that connect the motherboard to the display since they get flexed and bent every time you open and close the lid. So you might try opening the display up to various angles to see if it comes on or flickers at any point in the process; that would point to a cable as the source of the problem.

If that doesn't help, you probably need to open it up and check the connectors and cables. Verify that the display cables are all plugged in securely then look for any areas where the cable bends and flexes and try manually manipulating them to see if the display reacts when you do.

I have to give HP props for making their service manuals available to the general public so we have guides to go by when we need to fix our machines. Here's the one for your laptop, Georgia.

OMEN by HP Laptop PC Maintenance and Service GuideIMPORTANT! This document is intended for HP authorized service providers only.

The display assembly removal procedure is on Page 37. I'd say start by removing the base enclosure then power it up and follow that display cable from the motherboard to the screen, taking note of where it bends. Power up the laptop and fiddle with the cable. It looks like the display cable is replaceable separately from the screen, but if that's not the issue then the LCD is most likely the next item that would need to be replaced.

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Alright then, thank you very much for your advice! I'll try that tomorrow and see how things go, hopefully it isn't the screen itself that's a problem.

Georgia さんによる2023年9月26日

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Can you try hooking it up to an external monitor? That would help diagnose whether it's a motherboard/GPU issue or a display issue. — Jerry Wheeler
Okay so I just gave that a try, and it works with my pc's monitor yeah! Does that mean it's a display problem? — Georgia
Alright then, thank you very much for your advice! I'll try that tomorrow and see how things go, hopefully it isn't the screen itself that's a problem. — Georgia

HP OMEN 15-ax280nd

Screen not displaying despite backlight being active.

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