Hello,
Please bare in mind that there are at least 3 models of Lenovo ThinkPad X1
- Yoga witn only Gen4 mentioned in arch wiki
- Extreme (with two generations)
- Carbon (with 8 generations)
In order to trim down the information, and be specific, you should provide some specific information too. Usually inxi -Fazy is a good start.
For that, see this
https://bbs.archlinux.org/viewtopic.php?id=213013