[user5994461]

Short version: DON'T DO THAT.

There were people in the bug report reporting issues on the XPS 13 and many more brands than just lenovo. Try waiting 6 months until Ubuntu can sort their shit.

edit: there is a guy complaining that it screwed his XPS 13 a few messages up.

[bproven]

Yeah, Maybe I got lucky. If you want to totally play it safe wait until 18.04 LTS is released. They should (hopefully) have this worked out by the LTS release.