Duplicate closed lid behaviour having the laptop lid open?

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How to duplicate the closed lid behaviour while having the laptop lid open? Wish to have display off on demand when running certain apps, with a remote screen.

$ xrandr --output --off This command keeps display off but does not send proper image to remote screen, so it is not usable.

$ xset dpms force off This behaviour breaks as soon as you do anything remotely on the laptop, having laptop display turn on.

Any other ideas? Thx!

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