Second screen flicking

[Shanester]

Greetings,

I plugged my TV into my laptop using an HDMI cable, but the TV screen flickers constantly. I'm not sure where to begin.

My Envy has a native resolution of 1920 x 1080, but my TV has a resolution of 3840 x 2160 (exactly double). Microsoft suggests reinstalling the driver, but Device Manager doesn't show the display adapters being in an error state.

How can I troubleshoot this issue?

Thanks,
Shane.

[praveen196]

@Shanester Welcome to HP Community!

I understand that the Second screen flicking.

Have you tried with a different HDMI cable?

Try updating the computer, this will install the latest updates -

Step 1 Windows Updates -

1) In the search box, type, and open Windows Updates.

2) Check for updates.

3) If the updates are available, click on install and restart the computer.

Step 2 Install updates using HP Support Assistant

1. In the search box, type, and open HP Support Assistant. 
2. Check for updates. 
3. If the updates are available, click on install and restart the computer.  

Note: If you do not have HP Support Assistant installed, Click here to download the same.

Please refer to the below link to troubleshoot.

https://support.hp.com/in-en/document/c01186408

Keep us posted,

If you would like to thank us for our efforts to help you, 

Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post, 

Have a great day!

[Shanester]

Sorry for my delay in replying.

I have most Windows Updates. The only one I don't have is the May 2020 Feature Update. Windows says "The Windows 10 May 2020 Update is on its way. Once it's ready for your device, you'll see the update available on this page." I have all HP updates.

Thanks for the article. I also found another article with advanced troubleshooting steps.

Device manager is showing two display adapters:

Intel(R) HD Graphics 620
NVIDIA GeForce 940MX

Why do I have two display drivers?

Thanks,
Shane.