Connect macbook air m4 to Thinkpad hybrid docking station

Lenovo Support – ThinkPad Hybrid USB-C with USB-A Dock - Overview and Service Parts

My first suspicion is that this dock does not use native hardware video output from your M4 MacBook Air – and that this is why you are not seeing anything on your monitor.

USB-A is not designed to carry video signals. When you see a dock that has video outputs and that attaches or can attach via USB-A, this is a strong hint that it drives its output using a second-class workaround. A workaround that requires installing a special driver on your computer, and that may come with serious compromises.

Sure enough, this dock depends on DisplayLink drivers. Lenovo only supplies DisplayLink drivers for Windows 10 & 11 machines. It is possible that the Macintosh DisplayLink drivers on the Synaptics site might work with this dock – but I would recommend against installing them.

Get yourself a better dock, one that relies on USB-C (DisplayPort Alt Mode) or on Thunderbolt. (A Mac can drive a single monitor from a "plain" USB-C dock; and up to two monitors from a Thunderbolt dock.)

If you want to connect two monitors through a single hub or dock, it will need to be a Thunderbolt dock. I would suggest looking at the offerings from

• Other World Computing (MacSales)
• SonnetTech
• CalDigit

These companies have been in the business of supplying high-end Thunderbolt gear to Mac users for a long time.

if the usb-c connector is not thunderbolt, and if the docking station do not act the role of usb external video card

then that will likely be the reason, if it was me then I would read up on the specs /documentation of the lenovo docking stations