USB-C displayport alt mode with HP Dock

[Bhie4]

Hello,

I'm trying to connect my laptop (Acer Swift SF313-51) to a monitor (HP E24i G4 WUXGA) via the HP Thunderbolt G2 dock.

My laptop does support USB-C displayport alternate mode output, and the G2 dock also apparently supports non-HP USB-C video, but plugging the dock cable into the laptop USB port and switching input modes does nothing.

Any help is appreciated

[banhien]

@Bhie4 

What is your Thunderbolt G2 dock ? Normally the HP Thunderbolt™ Dock 120W G2 (UK37AA)   is compatible with the following machines:

HP Elite x2 1012 G1, G2, G4
HP Elite x2 1013 G1, G4
HP Pro x2 612 G2
HP EliteBook Folio G1
HP EliteBook x360 1030 G2, G3, G4, G7
HP EliteBook x360 1040 G5, G6, G7
HP Elitebook 1020 G2
HP EliteBook 1040 G4
HP EliteBook 1030 G4
HP EliteBook 800 series G5, G6, G7, G8
HP EliteBook HC G5, G6
HP EliteBook x360 830 G6, G7
HP EliteBook 700 series G5, G6
HP ProBook 640 G4, G5, G7,
HP ProBook 645 G4
HP ProBook 650 G5, G7, G8
HP ProBook 400 series G5, G6, G7
HP ProBook x360 435 G7
HP ZBook x2 G4
HP ZBook 14u G1, G5
HP ZBook 15u G3, G5, G7
HP ZBook Firefly 14 G7, G8

HP ZBook Firefly 15 G7, G8
HP Zbook 17 G3
HP ZHAN 66 Pro series G1, G2, G3, G4
HP ZHAN Pro 13, 14, 15 G2
HP ZAHN X13 G2

Your  Swift SF313-51 is NOT compatible with your dock and your machine does not have Thunderbolt port

Regards.

[Bhie4]

The Thunderbolt G2 dock datasheet specifically states that it "supports both HP and non-HP Thunderbolt and USB-C notebooks" (first page). 

Similarly, the SF313-51 manual says that the USB-C port "supports DisplayPort audio/video output" (pages 11-12).

Please clarify.

[banhien]

@Bhie4 

Not all USB-C ports are the same. Definitively your Acer machine does NOT have Thunderbolt port.

Regards.

[Bhie4]

Again, does the Thunderbolt G2 dock NEED a thunderbolt connection? Because the official HP data sheet makes a clear distinction between "Thunderbolt and USB-C" ports

[banhien]

@Bhie4 

More info

    https://www.hp.com/us-en/shop/tech-takes/usb-c-vs-thunderbolt

    https://au.pcmag.com/netbooks/68412/thunderbolt-3-vs-usb-c-whats-the-difference

    https://www.businessinsider.com/is-thunderbolt-the-same-as-usb-c

and more

Regards.