Brand new HP Laptop (HP Laptop PC 15s-fq2000) - External monitor over USB C is not working.

[RGabe]

Please help! Brand new HP Laptop (HP Laptop PC 15s-fq2000) - External monitor over USB C is not detected by laptop. Worked fine on old laptop. I tried two different external monitors and the same issue persists. The external monitor is connected via serial adapter to an external adapter connected to USB-C. Other devices (keyboard, webcam, mic) connected to external adapter are all working. 

[banhien]

@RGabe 

What is your HP Laptop PC 15s-fq2000 (2D119AV)  machine ? It could be one of the following over 190 machines:

          https://support.hp.com/us-en/product/product-specs/hp-15-f2000-laptop-pc-series/model/2100381733

For example:    HP Laptop 15s-fq2582TU

Your machine should have SAME ports as the above machine.  It ONLY has 1 hopeless SuperSpeed USB Type-C® 5Gbps signaling rate port which does NOT support Alt mode nor Power Delivery. You can NOT use it to

• Charge your machine,
• Connect to an external monitor with/without hub/dock/adapter (some hubs may have builtin chip to support this)

If you wish to connect 2 external monitors (only-total 3), you can use

• Monitor 1: HDMI direct cable,
• Monitor 2: Using a Displaylink Certified USB-A to HDMI adapter such as

                                     USB to HDMI Adapter

Other option: :   https://support.hp.com/au-en/document/c05357751

Regards