When watching fullscreen videos in Firefox on my OpenBSD desktop,
Firefox
doesn't inhibit DPMS, allowing the display to turn off. This isn't new
for me,
since I noticed the same thing back in 2018. At that time, I tested
Chromium as
well, and it performed as expected by keeping my display on.
I've looked into this a couple of times since then, and at this point
I'm sure
it has nothing to do with OpenBSD. Instead, it seems to be due to the
way
Firefox attempts to inhibit DPMS and/or the screensaver, which
apparently
doesn't work with a simple window manager setup like mine. I assume it
works
fine under XFCE and Gnome.
I've worked around this issue by creating keybindings to disable and
enable DPMS
manually when needed (using xset), so this isn't a high-priority problem
for me.
However, I was hoping to see if others have experienced the same
behavior, if
anyone can confirm my assumption about WMs/DEs, and if there's a better
way to
deal with it.
