My laptop screen goes blank when I connect the HDMI cable

[Jadelcs]

I have an HP Envy and when I connected the HDMI cable to my laptop from the TV it worked for about 5 mins. Then, all of a sudden, my laptop screen and TV both go blank and the TV displays "Invalid Format". My laptop freezes. Even if I unplug the HDMI cable my laptop still stays blank. I have to do a hard reboot to get it up and running again. I plug the HDMI cable in and it does the same thing. My friend connected her laptop and it worked fine. Someone please help.

[Dunidar]

Hello Jadelcs,

Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.

I would encourage you to post your product number for your computer. I am linking an HP Support document below that will show you how to find your product number. As well, if you could indicate which operating system you are using. And whether your operating system is 32-bit or 64-bit as with this and the product number we can provide you with accurate information.

How Do I Find My Model Number or Product Number?

Which Windows operating system am I running?

Is the Windows Version on My Computer 32-bit or 64-bit?

Please re-post with the requested information and I would be happy to provide you with assistance. Thank you for posting on the HP Forums. Have a great day!

[Jadelcs]

Hi,

Here is the info on my laptop.

HP Envy17 Notebook PC

Product number YL747UA#ABA

Serial number is [edited by Moderator]

Windows Home 7

64 bit

Intel(R) core(TM) i7 CPU

Any help would be wonderful.

Thanks.

[Dunidar · Accepted solution]

Hello Jadelcs,

Thank you for responding to my request for additional information. I suggest we reinstall the original drivers that came with your system. I am providing you with an HP Support document: Using Recovery Manager to Restore Software and Drivers (Windows 7) as this document will walk you through the recovery process.

I have looked into this issue and it has resolved most instances of the issue you have described. Thank you for posting on the HP Forums. Have a great day!

[george-p]

Hi @Jadelcs ,

Thank you for visiting the HP Support Forums. I'm sorry to inform you that your post has needed some editing to remove personal information such as your Serial Number that was in your post. From our Rules of Participation:

Protect privacy - yours and others'. Don't share anything about yourself that you would not want to see on a road-side billboard. Don't post contact or other personal information-your own or anyone else's-or any content that you receive in one-to-one communications without the author's consent. For example, don’t post your computer’s serial # or contact information publicly, and do not allow someone you don’t know to remotely take control of your computer.

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Sharing personal email addresses, telephone numbers, and last names is not allowed for your safety. If you have any questions feel free to send me a private message in reply.

Thank you,

George

[Jadelcs]

Is there a specific driver I am supposed to be reinstalling?

[Jadelcs]

I reinstalled the ATI VGA driver and hey presto, it's working again. I could jump for joy. Actually, I did. Thanks so much for all your help.