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Question

Asus G550jk Dark display (No Flickers)

Mar 10, 2017 2:27PM PST

I have an Asus G550jk, bought in 2014. About 15 months ago I had issues with my screen cable: the microphone stopped working, I got flickers when tilting the screen and eventually the screen image died and I had a faint image when strong light hit the screen. I changed the cable and everything was great.

A couple of months ago I noticed this issue: say my screen would be open 120 degrees from keyboard, when closed to 60 degrees ( about there ish) it would go totally dark instantly, no faint image with strong light hitting the screen, sound and computing still working. No matter what I did, swing the lid back and forth, press keys, nothing recovered it except closing the lid fully and opening it again. So, I would go in sleep mode and wake it up again then I had image again.

This issue was present both in Win 8 and 10.

Occasionally, if I opened the screen fully, about 160 degrees, the blackout would happen sooner at about 80 or 90 degrees, at least I seem to have noticed that - so there's something mechanical about it: probably the same mechanism that puts the laptop to sleep when the lid's closed (except my laptop wouldn't go to sleep, just a dark screen so I'm not sure).

Finally, a few days ago, while watching some clip online, I got this yellow screen of death, with error 21 ( 20 something anyway), sound looping like a jammed video. It kept looping so I forced shut-down.

At reboot I saw the boot log info and Asus logo, then total darkness. Subsequently I did not see anything else when restarting. So now I'm in total darkness.

I suspect it's not the cable as there were no flickers - i.e. the issue I had 15 months ago.

The laptop works just fine with an external display via hdmi.

So what do you think it's broken? Lemme know as I'd like to buy the part and change it asap.

Thank you,

Andrei

Discussion is locked

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Answer
Sounds mechanical.
Mar 10, 2017 2:34PM PST

Look for cables that run from motherboard to display. Change those.

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Like I Said
Mar 10, 2017 2:49PM PST

When the cable is broken, flickers are a symptom, what makes u say I should try changing that without the usual flickers?

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PS
Mar 10, 2017 2:51PM PST

PS: I hope u noticed in the intro that I already experienced a broken cable (the one running from the motherboard to the display).

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It's mechanical
Mar 10, 2017 2:58PM PST

And since most of the time we can't see the break, we just replace it. There are some folk that limp along so you let them. Also, if it's not the cable the other parts are pricey. Usually the end of the laptop.

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PS. EXAMPLE connection issue and cleaning.
Mar 10, 2017 3:35PM PST
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Not a satisfactory answer
Mar 10, 2017 4:11PM PST

I'll test the cable for breaks to make sure.

Price of parts is not the issue here. Whatever it costs I'd like to understand the "why" of this behavior.

Your answer does not provide any explanation for your conclusion. Broken cables have flickers and an increasing frequency of issues. This issue was constant then sudden death - atipical of wire behavior: think about it.

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The issue has changed
Mar 10, 2017 4:17PM PST

Ok, now the boot image is back and I have a back screen upon login.

I think I've seen this around online.

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Recovery mode
Mar 10, 2017 4:38PM PST

Entered recover mode with F9, I had a "proceed to win8.1" button (I upgraded this win10 on 8.1). It booted and now I'm in.

Dead screen case closed.

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That's just strange.
Mar 10, 2017 4:46PM PST

Well, no need to carry on. Closed.