To add here, I just started experiencing the same (or very similar) issue on a X1 Carbon 9th Gen -- but when suspending rather than trying to power off.
Closing the lid would appear to put the machine into suspend but: (1) it still runs --> gets hot in a bag --> eventually powers off due to overheat (occurred several times over a period of a week) (2) lid open and touchpad movement would not reawaken the machine (which they did before) In my case it started with an update to `linux-image-5.14.0-1027-oem` and persisted in 1029 after that. Reverting to `linux- image-5.14.0-1024-oem` and booting that kernel removes the issue. apport-bug output attached ** Attachment added: "apport-bug-output.txt" https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1940665/+attachment/5573564/+files/apport-bug-output.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940665 Title: Lenovo Carbon X1 9th gen no longer powers off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1940665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
