Windows 10: laptop not sending signal to HDMI external monitor

My monitor made a weird glitch in which I unplugged the HDMI cable from the ASUS laptop and Dell monitor. However, after reconnecting the monitor, it kept saying no signal. I then plugged a different monitor in with a different HDMI cable but it’s still doesn’t want to work. I then I tried a different laptop and the monitor worked perfectly fine. I also tried connecting ASUS laptop to a TV, it also doesn’t work there anymore. My guess is it’s something got to do with the laptop.

:)

 

'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.

 

Laptop + Monitor resets where to send signal to laptop instead of 4k monitor when restarted

None of that worked.

I do not use a converter.

The monitor will not accept 4k signal through HDMI port only 1080P.

With the batch file:

It send duplicate of laptops settings to external monitor which means it will be only 1080P also.

Why can't windows just remember what settings I have to send all info to the external screen every startup?

Robert