Hello, Late to the convo and new to openbsd.. I was browsing the bugs here on openbsd and found this thread.. this might not help but i just got this lenovo l440 and took a snapshot so i can make sure the laptop works fine..
Install went fine but as soon as i opened up firefox in i3 or cwm it crashed.. the whole machine locked up and i had to reboot a couple of times.. I then stated to people over on irc libera that im going to try stable or the current release that is stable. Haven't had an issue since.. the current version I tried was Tuesday 10/22 so whatever current snapshot that was. Hope this helps Joe