In Xubuntu 20.04, having a video playing would put a note on my power manager saying that a particular program is inhibiting power management. I can't remember if they needed to be in full screen or not. Regardless, this would mean that my machine wouldn't lock/sleep while a video was playing. In 22.04, I am not seeing this behavior. I've tested this with both VLC and (Snap) Firefox, but I'm neither seeing a note nor having locks prevented.
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looks like it's a Wayland thing, see https://askubuntu.com/questions/969398/how-to-prevent-the-screen-lock-while-watching-video-netflix-youtube-amazon-pr . Try switching back to xorg and see if that changes anything. – Esther Aug 31 '22 at 15:58
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also check the screensaver settings, the option might be there – Esther Aug 31 '22 at 16:00
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@Esther I don't believe that I'm on Wayland. `echo $XDG_SESSION_TYPE` prints `x11`. – J. Mini Aug 31 '22 at 21:35
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@Esther My screensaver is entirely disabled. It can't be that. – J. Mini Aug 31 '22 at 21:43
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Just a comment. I don't let computer put itself to sleep, I invoke a process for it to go to sleep. – WinEunuuchs2Unix Sep 02 '22 at 01:15
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I am on vanilla Ubuntu 22.04 and I see the same issue. Whenever I watch a movie through `mplayer` I need to move my mouse every 10 minutes to prevent the screens to turn off. Did you get anywhere with this ? – pieroxy Oct 25 '22 at 08:49
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@pieroxy I don't really know about Ubuntu. Xubuntu's different. – J. Mini Oct 25 '22 at 15:18
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Apparently not. Both Steam and Microsoft Teams inhibit power management when making calls. It is as if the issue is specifically with video playing.
J. Mini
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