[13rac1]

Yes, it's one of the reasons Wayland was created. Screensavers didn't exist when X was designed. https://www.phoronix.com/scan.php?page=news_item&px=OTI5MQ

> Right now with screensavers under X it's basically capturing the input and continually redrawing over the display. > With Wayland, Kristian plans for the lock-screen to be part of the Wayland compositor. In having the compositor handle the screensaver role, it can ensure that no window can appear atop the screensaver surface, it can properly detect idling and grabs already, and has complete control over the screen. Unlike the X design, there wouldn't even need to be a screensaver "window" that's on top but the compositor could just keep painting a black screen. For those interested in a "fancy screensaver", a plug-in could be used or an out-of-process Wayland client for drawing whatever you desire.