I have installed Devuan ASCII with the cinnamon desktop  from scratch on my old X200 laptop. I found cinnamon-power-manager was not working properly from the beginning - the screen was not turn off when when the laptop lid was closed. After some investigations I found that after recompiling package cinnamon-settings-daemon-3.2.1-3 from source and reinstallig it everything is working fine - the screen is turned off after closing lid and turn it back on when it is opened. By the way the acpid is not installed.