![mac usb c adapter mess mac usb c adapter mess](https://i.imgur.com/vCtXvR7.jpg)
The protocol itself has change quite a bit from when it first launched in 1996.
![mac usb c adapter mess mac usb c adapter mess](https://techawarness.com/wp-content/uploads/2017/07/21967-25985-cable-ends-l.jpg)
If you’re not interested in reading any of that, skip to the conclusion Data Below are the parts that are relevant for the problem or were confusing or surprising to me. To find out why it wasn’t working, I had to read quite a bit about how USB works. I couldn’t find any reason why the setup was broken. The monitor wasn’t recognized as a normal monitor either, but as a ‘Billboard Device’ that didn’t seem to do anything. Every time the cable was connected, this error notification popped up: Her peripherals attached to the monitor, however, were connected to the laptop and could be used. Sadly, after setting up the devices, the laptop could not output to the Dell monitor. The only other cable she would need to plug into her laptop, would be the AC adapter. The idea was that she could hook up all her USB devices such as a keyboard and mouse to the monitor and use one USB-C cable to connect the laptop and display together. The monitor is also capable of supplying up to 100W of power via de USB-C cable, but the laptop sadly doesn’t support receiving power over the port. The choice fell on the Lenovo 13S-IWL laptop and Dell U2719DC monitor.īoth the monitor and laptop support USB Type-C (USB-C) DisplayPort (DP) Alternate Mode (Alt Mode) which allows for output/input of a DP signal over USB-C. I wanted her setup to be as simple as possible, while still being reasonably priced. Last holiday I helped my sister find a new setup for her home office.