Windows 10: Laptop detecting hdmi being plugged in but no picture output

So I plugged my laptop into an hdmi cable for my tv and it detects it, but there is no picture output. It was working a minute ago before I installed a windows update. Then when I came back, it stopped displaying picture and audio. Is there a way to fix this?

:)

 

Why exactly is ATi considered be better at HDMI?

I plug my HDMI cable into the card, then into my TV. Those are the steps that I have to do. All the steps you list make absolutely no sense to me.

 

cant detect tv with hdmi

Hi,

Thank you for contacting Microsoft Community and welcome to Windows 10 family.

Please try with these steps:



1. Right click on the Desktop.

2. Choose Screen Resolution.

3. Let’s see if TV has been detected. If not, press “Detect” button.



Also go through the below steps:



Step1:



Choose the connection for video output. If your computer has an HDMI port, otherwise, you will need to make a few decisions. If your computer has only a single video output, and it will not be used solely with the television, you may want to invest in a
new video card. Purchase one with either a DVI or an HDMI output, and install it in an available slot, according the instructions included with it. If you intend to use the VGA output on a single-output or dual-output card to drive the HDMI display, then a
special device will be needed to convert between the formats, and the price of the converter is actually about the same price as an entry-level video card that will be easier to use with your TV. In that case, it may be a wise idea to upgrade the card in order
to obtain a DVI or HDMI port. However, if your chosen output port is of the DVI variety, an inexpensive DVI to HDMI cable can be purchased to convert your computer's output into the proper HDMI input for your TV.



Step 2:



Connect the HDMI cable from your television to your computer. Install the correct adapter or converter for your computer, if necessary. Unless your computer has HDMI output, cords will also need to be connected from the sound card output to the HDMI video
cable or adapter, because HDMI carries both video and audio signals.



Step 3:



1. Boot your PC, and configure the new display,

2. Go to "Control Panel" from the "Start" Menu.

3. Double-click the "Display" icon and click the "Settings" tab.



The manual for your HDMI TV will list the screen resolutions it supports, along with the refresh rates.

Configure the resolution in the "Settings" tab, and then click the "Advanced" button to set the refresh rate.

If you are using the HDMI TV as the second monitor, you will also have to configure how it is used by Windows, according to the instructions pertaining to your video card. Most cards offer a "Clone" or "Mirror" mode, where both screens display the same content.
Alternately, the "Extended Desktop" mode can be used, in which each monitor will operate independently.

Hope this helps. Please post us if you need any further assistance with Windows.

Thank you.

 

HDMI output disappeared on laptop - TV no longer plays audio when connected with HDMI cable.

I connected my laptop to the TV last night via HDMI to watch some shows when I noticed it wasn't playing audio like it usually does. Visual was fine, but audio was only coming from my laptop. Went through various
settings and tried everything from games to mp3s, but it's like my laptop would not recognize my TV for the purposes of audio.

When I go into sound devices, whether the HDMI cable is plugged in or not, there is no Realtek HDMI Output in the devices section, even with disabled/unplugged devices ticked. It just has "speaker/headphones."

Things I have done:

• Uninstalled/reinstalled speakers
  
• Uninstalled/reinstalled/updated audio drivers
  
• Updated Nvidia graphics card drivers
  
• General Windows update
  
• Restarting laptop
  

It's not an issue with the TV as it plays audio fine when the Roku is plugged in. It's not an issue with the cable itself, as I have another brand new HDMI cable that I plugged in and I still get the same issue.
It's worked normally from February up until yesterday when it suddenly didn't.

Laptop is an HP 15-au018wm, Windows 10, all drivers are up to speed.