Why won't my Acer Chromebook Spin 714 Touchscreen CP714-1HN connect to external monitor via usb c?

bombane

I just bought this but it won't work over usb c cable to my external monitor. The monitor just says no signal.

I've tried 2 cables that are certified for video and also tried it with the Chromebook under power.

This worked fine with my Lenovo ideapad gamin Chromebook (using the same cables)

This is the monitor:

https://www.amazon.co.uk/dp/B0CJCCDV65?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

ARZOPA Portable Monitor, 15.6" 1920×1080 FHD IPS Portable Monitor for Laptop with Kickstand, Ultra-Slim Second screen for Laptop/PC/Mac/PS3/4/5/Xbox - USB C & HDMI Connectivity - A1

Any help greatly appreciated,

Thank you

Puraw

https://community.acer.com/en/discussion/715034/why-wont-my-acer-chromebook-spin-714-touchscreen-cp714-1hn-connect-to-external-monitor-via-usb-c

Hi, the Acer Chromebook Spin 714 CP714-1HN supports Thunderbolt 4 and DisplayPort Alt Mode through its 2 USB-C ports so you should have no issues connecting an external monitor to one of the 2 USB-C port with a DP 1.2 or 1.4 cable if the monitor has a DP port or DP-HDMI 2.0 cable. That monitor has both ports DP and HDMI so it should work. Have you tried the other USB-C port or HDMI port on the laptop if that works? If nothing works, I suggest taking the laptop to Acer Services to check the USB-C ports, there are no BIOS or driver updates available on Acer Support for your model.