laptop-mode-tools no longer adjusts LCD brightness

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https://bbs.archlinux.org – Thanks. Sorry, it started as a thread about a different issue which seemed very newbie but halfway through writing it I realised what an idiot I was so I turned it into the second thread I planned to start and forgot I probably wanted a different forum. Thanks for moving it.I think this issue is related to sleep/wake. If I remove the power while the laptop is awake and then replace it, all is well - 12 -> 10 -> 12. But if I put the laptop to sleep on power and wake it on battery, laptop-mode fails to adjust the brightness even if I have systemd restart the service and even though it does (HowTos)