I've noticed on Ubuntu 24.04 this appears to occur due to a mismatch
between how Xorg blanks the screen and the configuration gnome-settings-
daemon applies.
If you go into GSD -> Power -> Screen Blank and set it to "Never", then
go to Privacy & Security -> Blank Screen Delay -> Never, xset q still
reports
Screen Saver: prefer blanking yes, allow exposures: yes, timeout 600
cycle 600.
In other words, changing the configuration in GSD does not actually turn
off the screen saver in Xorg.
However, this issue does not appear to impact Wayland.
I was able to figure this out because my AMD box on Wayland doesn't have
this problem, only my NVidia box on Xorg.
A workaround is setting putting "xset s off" in your .bashrc or .xinitrc, but
that still means that the configuration in GSD won't actually control your
screen blank.
** Also affects: gnome-settings-daemon (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2002358
Title:
Screen turned off after seconds of inactivity, fixed by xset -dpms;
bug depending on kernel version?
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