Windows 10: After Update für Windows 11 Laptop HDMI Monitor no signal

Laptop Dell Precission 5470After 2023-01 Update für Windows 11 Version 22H2 für x64-basierte Systeme KB4023057Windows shows that I am connected to a second screen, HDMI but monitor shows NO SIGNAL.Happened on 2 different laptops.

:)

 

Monitor not working - HDMI has no signal

Yesterday, my ASUS monitor was working fine connected to my HP spectrum using Windows 10. Today, the monitor delivers a no HDMI signal message. I have restarted both laptop and monitor, replaced the HDMI cable, updated display driver and still no luck.
Suggestions welcome.

 

'No signal' on external monitor when connected to laptop via HDMI

'No signal' on external monitor when connected to laptop via HDMI

 

'No signal' on external monitor when connected to laptop via HDMI

Hi,

I've just updated my laptop from Windows 7 to Windows 10. When I plug my laptop into my LG 4K TV or an external monitor using an HDMI cable there's a "No signal" message on the monitor/TV. Prior to updating to Windows 10 I used to be able to plug it in via HDMI to the TV and it would automatically display correctly.

Here's my laptop details:

Windows version: Windows 10 Home 64 bit, version 1909
Model of laptop: HP Pavilion dv6 Notebook PC
Processor: Intel Core i3 CPU, 2.53 Ghz
Memory: 8GB ram
Graphics drivers: Intel HD Graphics and AMD Mobility Radeon HD 5000 series


I've tried the following suggestions to no avail. I've tried:

-two different HDMI cables.
-changing the order in which the cables are plugged into the laptop/TV, as well as after a restart.
-connecting to an external monitor as well as the TV.
-updating both the display adapters (both are up to date).
-rolling back the display adapters.
-using the windows key + p command to toggle between 'duplicate' and 'extend' screen arrangements
-using the 'detect' button for multiple displays in the display settings (pressing this does nothing)

I've noticed when it is connected, under both the display settings and the intel graphics control panel, there is only a single display listed (that of the the laptop). There is no second display listed under the 'multiple displays' panel. Also, when I plus the cable into the laptop from the TV, the TV will bring up an 'HDMI 3' selection box (when clicking on it, however, 'no signal' results).

Does anyone have any other ideas how to get the laptop to display on my TV via HDMI?

Thanks very much for the help

- - - Updated - - -

Someone helped me resolve this. For me, the following worked. Uninstall the AMD catalyst software. Download the crimson beta version from here: https://www.amd.com/en/support/graph...radeon-hd-5830. Restart after installation. Then press window key + p and chang it to 'duplicate' and it should display correctly.