Cannot connect 4k display to Spectre x360

[Jeet_singh]

@Loewe001,

It's great to have you back and your patience is greatly appreciated. 

It looks like you were interacting with @Raj1788, but he is out for the day & I'll be glad to help you out, 
I'm the Jeet_Singh & I'm at your service. 

After reviewing your post thoroughly, I see that you have exhausted all possible troubleshooting steps and nothing has helped to resolve this issue. 

In this scenario, I will share you a private message with details. Please watch your inbox for more information.

Let me know if this helps!

Have a great day ahead! 🙂

[Loewe001]

All~

A fantastic update to my problem. The theory from the last customer service rep I spoke with on the phone was that the external monitor needed more energy than what the HDMI port could supply (we heard lots of beeping connecting and disconnecting). I purchased a simple USB-C to HDMI cable, connected them up and it worked. I connected through the Thunderbolt port...so will need to find a hub solution that works so that I can charge and view at the same time...but at least for now I can see my screen in full 4K. Good luck to everyone else that might get this issue, hope this helps!

Thanx, bob.

[Raj1788]

@Loewe001,

Thanks for the reply,

I'm glad to hear you found the solution you were looking for.

Thanks for taking the time to let the community know about the solution!

Take care now and do have a great week ahead.

:)Cheers:)

[Memmius]

I have been connecting my HP Spectre x360 to an external Dell 4K monitor for months.  I connect it using a USB-C to HDMI cable.  Today, the monitor says that there's no HDMI signal, but the screen on the laptop is working fine.  The external monitor is working normally; I was able to plug in another laptop using the displayport.  Both of the USB-C ports on the laptop are working normally, so it's not that.  I changed the cable but that didn't work.  I've obviously restarted the laptop and monitor multiple times.  I've run Windows Update.  What could be wrong?

[Echo_Lake]

@Memmius

Thank you for posting on the HP Support Community.

• Have you made any hardware/software changes?
• What is the product number of your device? Use this link to find it: http://support.hp.com/us-en/document/c03754824

While you respond to that, let's try these steps: 

Hard Reset: Follow steps from the link: https://hp.care/2GnkMa8. (do not skip any troubleshooting steps even if you feel steps are repeating)

BIOS default: 

1. Turn off the computer and wait five seconds.
2. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4. Press F10 to Save and Exit.
5. Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6. Follow the prompts to restart your computer. If the issue persists, follow the next steps.

Perform Windows Update and HP Support Assistant:

To check for updates now, select the Start button, and then go to Settings  > Update & security  > Windows Update, and select Check for updates.

Install updates from HP Support Assistant: Go to Download HP Support Assistant to install the tool.

1. To open the HP Support Assistant, double-click the HP Support Assistant icon .
2. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.
3. Click Check for updates and messages to scan for new updates.
4. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.
5. Click the update name for a description, version number, and file size.
6. Select the box next to any updates you want to install, and then click Download and install.

And, also run BIOS Update follow steps from the link: https://support.hp.com/in-en/document/c00042629  

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[Memmius]

Thanks very much.  I had updated my BIOS and drivers, but hadn't a hard reset.  the drivers were reinstalled and the problem resolved itself.  I think it was a matter of clashing updates, or an update that needed to be patched.

[Echo_Lake]

@Memmius

Thank you for posting back.

Glad to hear that the issue is resolved. If you need any help, feel free to reach out to us.

Have a great day! 
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.