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Gnome Energy Saving: How to turn of the watch screen?
September 30, 2018
November 24, 2022
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Lots of people are annoyed by this “Screen Shield” or “Curtain” or “Swipe to Unlock” as it is can be called. This Ask Ubuntu question has 33 up-votes: How to remove "phone style" Gnome swipe to unlock
The answer with the most votes states:
Open Ubuntu Software and install the GNOME Shell Extension called:
Disable Screen Shield
This works for Ubuntu 18.04
Source: Disable Screen Shield
Note most users say it works with 18.04, but one commented it doesn’t work. It could just be s/he didn’t install it correctly.