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Dear Lazyweb, what is the proper way to tell Wayland, "power off the monitor, power it on again when there is activity"? AKA "xset dpms force off" or "DPMSForceLevel()".
The closest I have found is "wlr-randr --output HDMI-A-2 --off" which powers off as a side effect of disabling the monitor in RANDR... and it doesn't turn back on at activity.
Doing that in code (via "wlr-output-management-unstable-v1", which of course GNOME and KDE don't implement) takes 400+ lines...
https://jwz.org/b/ykqo
