Connecting Monitor via USB C fails

[Jan1041]

Connecting monitor (LenovoThinkVision) via USB-C all of sudden fails after working before without any problems.

Receive information after plug-in "Display connection might be limited". Charging works and also keyboard which is connected to the monitor. Only video is not working!

Test HDMI adapter to USB-C and that seems to work. 

What´s the actual solution since I´m not so keen to buy a new cable!.

[The_Fossette]

@Jan1041,

Welcome to the HP Support Community!

What is the product number for your computer?

Meanwhile, I recommend you update the BIOS and the graphics driver from the below link and check if it helps.

https://support.hp.com/in-en/drivers

Let me know how it goes and you have a great day!

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

Cheers!

[Jan1041]

Updated BIOS and Graphics driver. Nothing lead to sucess. 

Cross checked with MacBook Pro and Monitor and accessories working fine. 

Something with USB-C (Thunderbolt software?)

Please find below my product number:

5EP94EA#UUW

Please povide feedback!

[The_Fossette]

@Jan1041,

I recommend you perform a system restore back to the date when the USB port was working fine.

Follow the steps in the below article to perform a system restore.

https://support.hp.com/in-en/document/c03327545

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

Cheers!

[Jan1041]

Do you actually have a clue what to do to solve this porblem?

Nothing proposed so far is working for me!

Audio signal is on top of the issue seems to not work as well. A restart is required to get audio working again.

;( really dissapointing!

BR,

Jan

[The_Fossette]

@Jan1041,

I recommed you contact support to further diagnose the issue.

Here is how you can get in touch with tech support.

1)Click on this link – www.hp.com/contacthp/

2)Select the product type.

3)Enter the serial number of your device or select let HP detect your product option.

4)Select the country from the drop-down.

5)You should see the HP phone support number or Chat option listed.

Cheers!

[Jan1041 · Accepted solution]

Found the solution.

The resolution of the machine is the problem. 

Something must have been switched by updates but if resolution is turned down from 4K to 2K the port is accepting the external screen.