The issue should get resolve after this, if the issue persist then you need to uninstall video and audio driver.
Restart the system install the video drier first then audio driver
I hope your issue will get resolved and you will able to enjoy the HDMI connection again.
Did someone help you today? Press the star on the left to thank them with a Kudo! If you find a post helpful and it answers your question, please mark it as an "Accepted Solution".! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.