If blanking is being inhibited by dbus, the verbose log will look like this:
xscreensaver-systemd: 16:54:30: inhibited by "firefox-esr" (:1.48) with "video-playing" cookie "0C765C49" xscreensaver-systemd: 16:54:30: inhibited by "firefox-esr" since Mon Feb 20 16:54:30 2023 xscreensaver-systemd: 16:54:30: exec: xscreensaver-command --verbose -deactivate xscreensaver: 16:54:30: ClientMessage DEACTIVATE: already inactive, resetting activity time xscreensaver-command: already inactive, resetting activity time xscreensaver-systemd: 16:54:32: uninhibited by "firefox-esr" (:1.48) with "video-playing" cookie "0C765C49" If blanking is being inhibited directly, you'll see only the "deactivate" line.
