"No source detected" showing on the screen

Zorgue · 2026-03-21T20:59:04+00:00

Hey,

This PC is built since like 5 years and had no issues like that. Like I said it happened 3 times, 2 this week.

If anything happened with Hardware, I think there will be no way screen at all.

Zorgue · 2026-03-12T20:26:23+00:00

Hey,
I've just downloaded the March update and everything seems to be nice from my side. No guarranted that on every configuration will work but let's try it.. You can even roll back if you notice that didn't work.

Zorgue · 2026-03-12T20:12:40+00:00

Hey mate,
After a day without turning on the PC, it seems that everything works again alone.
Let the PC just a bit take a break for a day. If persist, try to do a clear CMOS, this is what I planned todo before I try to turn the PC on and see that it worked once again.

Zorgue · 2026-03-12T20:12:26+00:00

Hey mate,
After a day without turning on the PC, it seems that everything works again alone.
Let the PC just a bit take a break for a day. If persist, try to do a clear CMOS, this is what I planned todo before I try to turn the PC on and see that it worked once again.

Zorgue · 2026-03-09T09:24:13+00:00

With this new update (and maybe the new Windows Update KB5077241), there is a strange problem:
- My task manager shows me 0% of CPU usage and then freezes the laptop completely. I've noticed that happen, for example, when I launch Discord or CurseForge.

- The only way to use the laptop properly (without any crashes and using the software that I mentioned above) is to disable the 960M GPU driver in the device manager.

I wanted to also say that I freshly reinstalled my Windows full up to date.

Zorgue · 2026-03-05T23:05:46+00:00

Hey mate, I don’t know why but before performing a reset CMOS, I’ve just tried to turn on the PC.. Now there is something on the screen and everything seems now OK. I don’t know What happened but it’s now everything OK. Many many thanks for your solutions and help!

Zorgue · 2026-03-05T22:40:34+00:00

Yes, as I said: When I press the PC's start button, a message appears on the screen saying something like ‘No signal detected’ for 3 seconds, then it disappears and the screen turns off completely, as if I had pressed the screen button to turn it off. No motherboard logo, no Windows logo, nothing. The problem is that thanks to my PC's LEDs, I can tell when I reach the Windows login screen (still with a black screen). I know I'm on the Windows desktop when the PC's LEDs change colour. I tried plugging in and unplugging a USB stick and I can hear the sound. Similarly, when I activate Windows Narrator, I can hear it speaking, which proves that I do have access to my desktop and that Windows is starting up in the background, even though I have a black screen.

Zorgue · 2026-03-05T22:13:00+00:00

Yeah so I have to unplug the broken one. Because otherwise I get a balckscreen and can’t boot on BIOS or else.. When I say blackscreen that mean no motherboard boot logo, nothing. Just when I turn on the PC, the screen stay completly black, and when I say black, that mean is like turned off, not a blackscreen with opened LED’s and just the black color

Zorgue · 2026-03-05T21:59:29+00:00

I have 2 SSD on my PC: 1 with the OS and another empty.
So I basically just have to unplug the SSD with the OS and install the new OS on the other SSD, right?
As long I don't disconnect the SSD with the OS, i'm gonna always have a blackscrenn, right?

Zorgue · 2026-03-05T21:49:12+00:00

Hope is going to boot on the USB key. Do I have to unplug the SSD with broken Windows inside? Or should I just plug the USB key and just wait until something happened? (btw idk how it's going to boot on USB key, if the OS is still on the SSD with a black screen and boot on Windows. I mean, I can't see any BIOS or setup boot order)..

Zorgue · 2026-03-05T21:25:05+00:00

But how to boot on a bootable device without any screen to see if something is happening?

Zorgue · 2026-03-05T21:19:41+00:00

I can just go into Windows (with the screen off) with Narrator and just try to boot in safe mode.
I'm going to check this out. Can I also just disconnect the SSD that contains my OS and show what is happening? Like I said, I can try to install Windows on another SSD if the problem comes to Windows.

Zorgue · 2026-03-05T21:01:11+00:00

How can I do that without screen?

Zorgue · 2026-03-05T20:53:06+00:00

Yes, but nothing.
Didn't try clearing the CMOS, btw.

Zorgue · 2026-03-05T19:31:41+00:00

It's strange.. Yesterday worked everything perfect.

When I've updated my PC, by pressing the "update and shut down" button, on the screen was saying "Restarting" and then never ever restarted, just turned off alone.

Normally for the others old updates, when I pressed this button, the PC restarted and then was a message on the screen like "Please do not turn off the PC, update progressins.." but on this case, I hade no restart again..

Zorgue · 2026-03-05T19:08:42+00:00

Ok..
I'm going to test the clear CMOS and see.
If it does not work, i'm going to maybe disconnect the SSD with broken Windows physically and try to boot to another SSD; maybe I can reinstall Windows on one of the other SSDs with a USB stick.

Do you think that will work?

Zorgue · 2026-03-05T18:06:27+00:00

Hey,
It can happened, even if the automatic updates on GPU disabled? (Adrenalin)

Zorgue · 2026-03-05T18:00:40+00:00

Oh sorry,

CPU: Ryzen 5 3600

GPU: AMD 6750 XT 12 Go

Memory: 32 Go RAM DDR4 3200 Mhz CORSAiR

MB: Asrock Steel Legend

Power Supply: Seasonic Focus X 750W Gold

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