Black screen on second monitor

[Kane06]

I plug my HDMI cable into the computer and the computer recognizes the second monitor when I try to extend the screen but the second screen never displays an image, it remains black.  Window 10 updated the other day and I imagine this is where the problem comes from but i don't know where to look.  My drivers are update but one says there is a problem but don't know where to get this or how to fix it.  Both monitors are showing they are connected to Mobile Intel 4 Series Express Chipset Family (Microsoft Corporation - WDDM 1.1). But under device manager/Display Adapters it shows there is also an ATI Mobility Radeon HD 4300 Series video card that doesn't have drivers anymore when it did before and I don't have an option to roll drivers back.  How do i get these and will this solve my problem...very frustrating!!

[Jeet_singh]

@Kane06,

Thanks for engaging in HP support Forums! This is a wonderful location to converse with the community, get assistance and find tips! I reviewed your post and I understand that you are getting black screen when connecting to second monitor. Don’t worry, we will work together to resolve this issue and It’s a pleasure to assist you in this regard.

To provide you with an accurate solution, I'll need a few more details:

Could you provide me with the exact product number of the Notebook? Use this link to find it:  https://support.hp.com/in-en/document/c03754824  (Ensure you do not share any of your personal information such as serial, phone number, email ID, etc...).

Have you tried to check if the HDMI port on this computer works fine with other devices?

Have you checked in device manager for any unknown devices listed?

Have you tried to update the drivers?

Have you tried to check by reducing the screen resolution?

In the meantime, let's try these steps here: 

Let's start off by uninstalling the display drivers from device manager:

Right-Click on start button> click device manager> expand display adapters>then select the display drivers that are listed and right-click on it and uninstall the drivers.

Check the box that states delete the software for this device.

Now restart the computer and then update the Bios, Chipset and graphics card drivers on your PC from our HP support website, using this link.

Also, download and install HP support assistant on your PC. It should automatically download and install the latest updates and drivers for your PC.

Refer this link to know how to use HP support assistant.

If the issue persists, I have found a wonderful document which should help you resolve this issue - HP Notebook PCs - Connecting a Monitor, Projector, or TV (Windows 10, 8, 7)

Alternatively, you can also go through this link: HP PCs - Troubleshooting HDMI Display and Sound Issues (Windows 10, 8, 7)

Could you please respond to this post with the details and with the results of the troubleshooting as this will help me in further assisting you.

Eagerly waiting for your response!

I hope you have a good day ahead,

And Feel free to ask your queries as this forum has some of the best people in the world available and ready to help.

Regards,