[Solved] Black Screen Issue After Laptop Startup: Possible Causes & Solutions for Intermittent Booting

Hello. I have a problem. After turning on the laptop I have a black screen, it means nothing happens, when the laptop is turned on for a long time, it will turn on normally once in a while. What could be causing this?

Hello.

Author , Butter Butter... :|

Let's summarize: you turn on your laptop, nothing happens, you wait some time and only after a while (though not always) starts responding (a picture appears, the system loads). Is this how it works ???

that's exactly what happens

What is this laptop (brand, model)? Since when has this been happening? Was the laptop disassembled? Have any changes to the BIOS or updating the BIOS itself been made? Controlled temperatures?

Many things could be damaged, most likely HDD or MOBO, or BIOS may be damaged, but it's hard to tell without further information.

asus f555l is a model. this is already happening for a year or more, but the laptop was lying most of the time, now it was on for 3 hours and nothing appeared

And when you move the flap with the matrix, screen, this something appears?
What do you see when it already displays the image? System loaded right away, BIOS, some message?
It's the same on another external monitor, does it show right away? Got a different "display" to connect?

when I move the matrix, nothing happens, after a while the system charges normally, when I connect to another monitor, nothing happens, when for the TV there is no video signal, and when the monitor is connected to the computer, the black screen is

Do you have an icon like two monitors or screens on the F1-F12 keys?
By pressing together with FN you have the ability to switch screens, just connecting an additional display does not start this screen, you have to manually.

There is an additional graphic like here https://www.notebookcheck.pl/Recenzja-Asus-F555LB.164278.0.html GF940M?
Seeing such "black screens" comes to mind a damaged graphics card, after heating it starts to work, or it ends ...

there is no difference. when i create the keyboard i have a thin cable like something like a strap and it is very bent. could that be the reason and the keyboard might not work? And once when I connected the charger, the smoke flew from the laptop and the ribbon burned out. This ribbon connected this panel with LEDs, e.g. is the computer charged, etc., can it have something to do with it?

Hello

That could be a relationship. Especially that:

michal1250 wrote:

the smoke flew

Give photos of the damaged places and all that you described. (hopefully sharp and well lit)

best regards

in fact it damaged the tape which i don't have anymore, and i will give a picture of the inside

Added after 6 [minutes]:

here are pictures of the computer from the inside there should be a burned tape on the disc

maybe the component responsible for turning on the system is defective, after all, if the graphics were defective, the screen would already be on, and only after some time the computer turns on

1.

michal1250 wrote:

this is already happening for a year or more

2.

michal1250 wrote:

And sometime when I connected the charger, the smoke flew from the laptop and the ribbon burned out.

The cause-and-effect relationship can be seen with the naked eye.

First of all, the ribbon did not burn directly, because only the "signal" current flows on these ribbons and no supply voltage or current is connected there. The ribbon burned indirectly, i.e. the smoke went somewhere on the record and the ribbon was damaged as a result, but this is apparently the power section on the MOBO has broken.

By the way ... I wonder how this could have happened (balloon after connecting the charger). The charger was original or did the Chinese give it free to the ordered dish?

EDIT:

michal1250 wrote:

maybe the component responsible for turning on the system is defective, after all, if the graphics were defective, the screen would already be on, and only after some time the computer turns on

I exclude damage to the GPU, CPU and RAM. Or HDD (less likely but still possible) either MOBO (more specifically - the power section). Especially since you yourself admitted that "the bubble went" ... Not interesting.

The keyboard does not work all the time or just when there is no picture. If all the time it can be a ribbon cable (the bent one), a socket or damage on the disc.

Turning on over time suggests graphics card damage. When it heats up, it starts.

Do you have where to connect the disk to check SMART?

Write down where the ribbon was burnt. (at which end and on which side of the ribbon, i.e. from the drive side or on the other)

icosie wrote:

The keyboard does not work all the time or just when there is no picture. If all the time it can be a ribbon cable (the bent one), a socket or damage on the disc.

Full agreement.

icosie wrote:

Turning on over time suggests graphics card damage. When it heats up, it starts.

No mutual consent. So that the GPU has ... start When the GPU crashes it usually completely, or it turns on, but there are some "artifacts" around the image, but the first thing I hear is that it "has to warm up".

icosie wrote:

Do you have where to connect the disk to check SMART?

It is worth checking the disk, Author ! But I am still the most intrigued by this "balloon", ie what it was actually caused by ... Well, shouldn't we look for the source of the problem here?

I checked the disk on another computer, it worked fine

JasnyKris wrote:

For the GPU to ... boot. When the GPU breaks down completely, or it turns on but there are some "artifacts" around the image, but the first thing I hear is that it "has to warm up".

I now have a laptop in the workshop that actually displays artifacts (sometimes) but won't turn on when it's cold. This is exactly what it looks like:
- turning on the laptop - nothing happens except for the gradual heating of the elements inside - as usual at work
- turning off the laptop after 15 minutes
- subsequent firing - turns on normally without artifacts and other typical GPU damage
- comes a certain period of time (depending on the cooling capacity and ambient temperature)
- after heating to 70-75 ° C, the computer is only automatic
- next inclusive - artifacts
- after cooling down, everything repeats itself

I know it is the GPU, in this case it can be similar, only the author did not come to the "artifacts"


Edit: Give SMART to this drive, just because it works fine there doesn't necessarily make it fully functional

michal1250 wrote:

I checked the disk on another computer, it worked fine

Then everything points to the motherboard.

Added after 1 [minutes]:

icosie wrote:

JasnyKris wrote:

For the GPU to ... boot. When the GPU breaks down completely, or it turns on but there are some "artifacts" around the image, but the first thing I hear is that it "has to warm up".

I now have a laptop in the workshop that actually displays artifacts (sometimes) but won't turn on when it's cold. This is exactly what it looks like:
- turning on the laptop - nothing happens except for the gradual heating of the elements inside - as usual at work
- turning off the laptop after 15 minutes
- subsequent firing - turns on normally without artifacts and other typical GPU damage
- comes a certain period of time (depending on the cooling capacity and ambient temperature)
- after heating to 70-75 ° C, the computer is only automatic
- next inclusive - artifacts
- after cooling down, everything repeats itself

I know it is the GPU, in this case it can be similar, only the author did not come to the "artifacts"

For me it looks more like some too much fun at OC ... I do not deny that it could have happened because life is one big circus, but I'm still surprised that something "so suddenly and without anything" could happen. ..

i.e. I have to replace the motherboard, and its cost is about PLN 500-600

Added after 27 [minutes]:

I consider the topic closed. Thank you all for help in diagnosing the problem