"no signal" on second monitor after windows update

Dear ICT friends,

Since installing Windows 11 Pro, I've had trouble with detecting my second monitor.

Until recently it succeeded via the following method:

Reset driver to old program and then reset to new program again. After the reset (new driver --> old driver --> new driver) my second monitor could detetct my PC. I did that via:

Device Manager > Display adapters > Update drivers > Search for drivers on my computer

When I turned on PC it never recognized new program. But after the "reinstallation" it did. Now even that doesn't work anymore. Do you guys know how I can solve that problem?

Other things I have already tried are:

- connecting other PCs to monitor (works)
- testing other HDMI cable with my PC and monitor (fails)
- testing my PC on other monitor (fails)
- Reinstalling PC (flop, because I had to purchase Windows 11 again and now have the same problem again)
-installing intel autodetect (worked at first, but not anymore)

The problem always comes back after detaching my PC from the monitor (I use an HDMI cable). I used to be able to solve this through changing display system. All of a sudden this does not work anymore...

Can anyone help my with this issue?

Thanks in advance for your help.


Greetings,

Elena Leclercq

Hi Bruce, this evening I have time to try-out Speccy and send you a snapshot. I'll keep you updated.

Above I copied the link from speccy. I tried to find the PSU model, but I don't see it on my PC. The serial number of my PS (ASUS) is J2N0CV008512050. Can you continue with that information? I saw on a YT-video that with help of the serial number, the laptop properties can be found on the site of the manufacturer. So far, however, I did not find it.

PeterOz said:

What is the model and serial number of your laptop please?

Click to expand...

Hi PeterOz, the model number is UX410UAR and the serial number is J2N0CV008512050.

Rustys said:

Have you tried using cycling through the displays using the keyboard?

Had the system detect for multiple displays form the setting?

Goto ASUS site and download your system drivers for the display card that is in your system.

Click to expand...

Hi Rustys,

I just tried shifting between monitors with my keyboard (WIN + shift + left/right arrow), but that this not work. Even thought the monitor is connected with the cable, it is not being detected.

I am afraid I do not entirely understand what you want me to try in your second and third question.

Is the third question related to the following: When this problem first arised, I hired an ICT specialist to solve the issue. He wanted to download the original driver, but saw that is was no longer available for the model of my PC. So then he completely reinstalled my PC. The monitor connection worked until upgraded my Windows version. The old driver is still listed in device manager, however, it no longer works.