No videosignal through the USB-C-port

[Tinus26]

I want to connect 2 extra displays (HP LA 2205) at my laptop (HP Pavilion 15cs0xxx)

I have a cable HDMI to DVI-D for one screen. That fits and is ok.

The second one I want to use de USB-c port to DisplayPort or DVI-D. And there is a problem. There is no signal. When I connect directly USB-C tot the DVI-D or DisplayPort there is no signal. When I connect USB-C via HDMI to DVI-D there is no signal. When I connect HDMI to DVI-D there is a signal.

When I connect a mouse or keyboard via a USB-adapter in the USB-C-port, there is a signal and that works ok.

So my conclusion is there is no videosignal through the USB-C-port, but there should be.

Is my conclusion correct? What's the solution? How can I connect 2 extra displays at my laptop?

[banhien]

@Tinus26 

What is your Pavilion 15 cs0xxx  ?  Please use the following instructions to find out the model/product of your machine:

            https://support.hp.com/us-en/document/c03754824

Please do NOT post its Serial number (s/n).

Regards.

[Tinus26]

Its Pavilion 15-cs0852nd

[banhien]

@Tinus26 

Your machine has

• 1 USB 3.1 Type-C™ Gen 1 (Data Transfer up to 5 Gb/s, Power Delivery, DisplayPort™ 1.2, HP Sleep and Charge);
• 2 USB 3.1 Gen 1 (1 HP Sleep and Charge);
• 1 HDMI 1.4;
• 1 RJ-45;
• 1 headphone/microphone combo

Note: the USB-C is actually the USB 3.1 Gen 1. You can't expect it works like the second generation.

Now, just forget HDMI port (totally disconnect HDMI port), can you use USB-C to DisplayPort on monitor directly ?

Regards.

[Tinus26]

I tried the USB-C single with the Display-port. There is no signal.

(what's the difference between Gen 1 and Gen 2?)

[banhien]

---

@Tinus26 wrote:

.... (what's the difference between Gen 1 and Gen 2?)

---

Did you use NATIVE cable (no conversion) ? For USB 2.1 Gen 1 and Gen 2

   https://www.msi.com/blog/usb-3-1-gen1-gen2-explained

   https://www.tomshardware.com/news/difference-between-usb-3.1-gen1-usb-3.1-gen2,36941.html

Regards.

[Tinus26]

Thank you for the explanation.

This is de cable I use:

https://www.coolblue.nl/product/723410/startech-usb-c-naar-displayport-kabel-1-8-meter.html