HDMI output not working after Windows 8.1 update

[yawbus]

I am using an Envy TouchSmart 15 and I have just run an update of Windows 8.1 based on the system auto update (it ran 5 updates).

Prior to the update, I used a 27" monitor as the main screen and this was connected via the HDMI port.  Right after the update, the system doesn't seem to recognise the HDMI port anymore and it goes back to using the Envy laptop screen as the main screen.  I changed the HDMI cable but it made no difference.  I subsequently connected another laptop to the 27" monitor via HDMI and it worked fine.  So it appears both the monitor and the HDMI cable are fine.

Please can you help ?

[Lil_Lisa27 · Accepted solution]

Hey yawbus,

I would first like to welcome you to the HP Forums!

Thank you for sharing the troubleshooting steps that you have done already, and I will say you are correct that the issue is not with the HDMI Cable, or the 27" monitor. From what you have described in your post, it does sound as though the issue is with the drivers, possibly a conflict.

I would like to start of with installing the original video drivers that came with your notebook. I have included the document 'Using Recovery Manager to Restore Software and Drivers (Windows 😎'. Please follow through the steps for just reinstalling the original video drivers. After the original drivers have been installed, please restart your computer.

Now once the computer has restarted, you will need to install any updates that are available for both HP, and Windows. You can install both of these through the HP Support Assistant. I have included the document 'Using HP Support Assistant (Windows 😎'. Scroll down the page about halfway, and you should see an option for Updates and tune-ups. Please follow the options for HP updates, and Windows updates.

If you are still experiencing the same issue after the above troubleshooting steps, please let me know the full model number of your Envy TouchSmart 15. I have included the document 'Guide to finding your product number'. As well, please confirm the current version of Windows that you are running. If you need assistance in finding the version, I have included the document 'Which Windows operating system am I running?'.

Looking forward to your reply!

[yawbus]

Hi Lisa, Thanks for the solution.  It works !

Sorry it took me quite a while to reply as I had problem downloading the Windows updates, and I had to manually install the updates eventually.

[Neesa]

Thanks for this post...it worked for me as well. 

[Roger12345]

Hi,

This worked for me too, thanks!  Using an HP ENVY dv6 laptop plugged in through HDMI to an HP Pavilion 25bw monitor.

Windows did an update, maybe to 8.1 which I am now running, and after the update, the monitor was not recognized when connected to the HDMI port.  Not sure the update had been applied properly as it began installing when I turned my computer on.  After the installation completed, the Monitor connected to the HDMI was not available in the display settings.

Followed your steps and now the monitor is properly detected and available when connected to HDMI.  Using it now.

Thanks again.

[bravinichi]

I have Hp envy touchsmart 15.6 inch, model : M6- K125DX with a cracked screen and burnt lcd screen cord which I need a replacement and finding it difficult to get it in my country (Ghana) and my hdmi port can't connect to my Samsung flat panel tv Please any other options. Is been months now

[raeshock]

What if  I  have an HP ENVY core i7 that came with 8.1 installed and worked out of the box and is now not working?  Its less than a month old

[george-p]

Hi @bravinichi , @raeshock ,

I have sent you a private message. If you are not sure how to check your private messages then this post has instructions that will guide you through the process.

Regards,
George

[Rto176]

Hi, I also have a HP ENVY i7 (15-j165) model, bought it three days ago, hdmi output not working. 8.1 pre-installed...

Tried F4, deleting/installing video drivers...

any specific instructions?

[Neesa]

Reinstall your drivers. That's all I did and it has been working great ever since. Cheers