In my case, this turned out to be the kernel crashing when the e1000e module was removed. I rmmod'd that in rc.local because when I originally purchased the laptop, that module would suck power and battery life.
When I stop removing that module, the kernel doesn't crash and suspend, shutdown, etc, all work as designed. I can file a separate bug about that crash if you prefer or paste the crash here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861462 Title: Lenovo Thinkpad X1 Carbon 7th Gen doesn't suspend and resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-5.4/+bug/1861462/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
