Firstly a would apologize for my poor English.
I have a HP Pavilion - 15-au116nl with this graphic cards:
intel HD620 and InVidia 940mx. (HDMI port is on intel device)
When I connect an external display it works only with 23-24 hz frequency selected by the intel graphic panel with any resolution.
I have non possibility to choose resolution or frequency from invidia device panel.
It is not a problem of cable or monitor because I try with my surface pro 3 with mini-display port with the same cable and monitor and it works at 1920x1080 @60hz.
I would like to know if it's a problem of my HP notebook?
Hi! @Nando1984, Welcome to HP forums.
I understand you have display resolution issues using HDMI connection with your laptop.
Don't worry I'd like to help you out.
Did you make any software or hardware changes on your PC?
Have you tried checking with a different HDMI cable?
As you mentioned you have display resolution issues using HDMI connection with your laptop.
Try updating the graphics drivers and BIOS on your PC and check if it helps.
Please uninstall graphics adapter from device manager and update display adapter from the link below.
Go to windows desktop
Hold Windows key + Letter R key.
Run dialog box would open type devmgmt.msc
Device manager window will open.
Expand display adapter.
Right-click Intel HD Graphics and click uninstall.
Restart your PC and install the graphics driver.
Link to update the BIOS.
Also, update the graphics driver using this link.
You can also update the drivers using HP support assistant.
Refer this article to know more information about using HP support assistant.
Refer this article to further troubleshoot HDMI connection issues with your laptop.
If the solution provided worked for you, please mark accepted solution for this post.
I'll keep an eye out for your response.
I hope you have a great day! :)
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
Click the "Kudos, Thumbs Up" on the bottom right to say "Thanks" for helping!
I am an HP Employee