External monitor stopped working on Spectre x360

[BurningQuestion]

My portable external monitor that I've been using for nearly a year just stopped working. It connects for power and signal through a usb-c port (standard usb-c to usb-c cable, no adapters) and has been plug-and-play since the day I got it. Today, when I plug it in the monitor powers up, says "no signal" and goes into power-save mode.  The monitor works fine with other laptops; the problem is the computer.  How do i troubleshoot the cause of the problem and fix it?

[praveenbv]

Hi@BurningQuestion, Welcome to the HP Support Community!

Don't worry I'll try to help you out.

Did you make any hardware or software changes on your PC?

Try updating the BIOS and chipset driver on your PC and check if it helps.

1.Updating the BIOS  & Windows updated

You can try updating the drivers using HP support assistant.

Refer this article to know more information about using HP support assistant.

If the issue still persists after trying out the steps try the steps recommended below

Request you to follow the below troubleshooting steps that should fix the issue.

To recover from this issue, perform the following steps:

1. Power off the computer completely.

2. Press and hold the power button for 5 seconds (or more) to reset the Embedded Controller (EC).

3. The computer will power on automatically.

To resolve this issue, download and install the following SoftPaq to update the Chipset Utility driver.

              Hope this helps! Keep me posted. 

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!

Have a great day!