Pavilion g6 updated to windows 8.1 now tv won't display the screen

I cracked the screen of my HP Pavilion g6, so I usually connect it through HDMI to my Coby TV and it usually worked fine. Now, after updating to Windows 8.1, my TV won't display anything. I believe it is because the screen is black, and my TV never displayed a black screen before, it only showed the screen once the laptop has started up. I've tried pressing f4 and i can see that the screen is blue in the small area of my screen that still works, but it still isn't showing through my TV so I don't know how I can fix this problem because I cannot see the screen. Please help!

Hi ke11ie,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that after upgrading to Windows 8.1 your external display(CobyTV) is not working.   Just to rule out the TV if you connect to a different display does it work?
Here is a link to Connecting a Monitor, Projector or TV (Windows 8).
Here is a link to Display Quality Issues, that may also be of aid.
I hope this helps.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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