For the last 5 shut downs, my laptop has been going to black screen as if shut down (no keyboard light or anything), but the fans continue to run. Pushing on the power off button does not do anything and I am basically forced to wait for the laptop to run out of battery. There does not seem to be any specific error message popping.
I have a ThinkPad Carbon X1 gen 9 with Ubuntu 20.04 (dual boot with Windows, but I never use the latter).
Any help is more than welcome as it is a quite annoying issue. Thanks in advance!