Created attachment 277321 [details] Failed boot due to thinkpad_acpi driver I am not sure I opened the bug correctly, so sorry for any mistakes on that. The attached output from journalctl was obtained from the complete failed boot of arch linux on a thinkpad 13 20gj. By blacklisting the thinkpad_acpi driver everything runs as normal. If you need any other information I'll provide what I can.
This is fixed by 673b4271665a (4.17.6).