To connect a laptop with a thunderbolt docking station and use all its features, the thunderbolt docking station must be added as a trusted devoce. Without this, only basic features can be used.
Install the tool bolt: sudo pacman -S bolt
Then list all available devices with boltctl list.
A device can be authorized with boltctl authorize <device id>
Example
boldctl authorize 000b400c-2177-d400-ffff-ffffffffffff
Above command is only a temporary authorization and will be lost upon reboot. To permanently authorize a device, it should be enrolled.
Use the boltctl enroll <device id> command to permanently enroll a device.
Example
boltctl enroll 000b400c-2177-d400-ffff-ffffffffffff