Windows' built-in idle lock is one all-or-nothing timer. It can lock your screen after inactivity, but it won't dim the actual backlight to save power, and it won't hide what's on screen before the lock kicks in. PowerDoze adds three independent actions — real backlight dimming, a privacy overlay, and screen lock — each on its own timer.
Windows 11's Presence Sensing lives under Settings → System → Power & battery → Screen and sleep. It uses a hardware presence sensor — an IR or time-of-flight camera — found only on select newer laptops. If your PC doesn't have that sensor, this setting won't appear at all. When it is there, you can turn on Automatically turn off my screen when I leave and Automatically wake up my device when I approach. What it doesn't do: dim the backlight to save power, or hide on-screen content with a privacy overlay before locking. There's no idle-timer fallback. PowerDoze uses ordinary keyboard/mouse idle detection instead, so it works on any Windows PC or laptop, and it adds power-saving and privacy on top of locking, not just locking.
| Action | What it does | Typical delay | Benefit |
|---|---|---|---|
| Dim backlight | Genuinely lowers monitor brightness via hardware (WMI for laptop panels, DDC/CI for external monitors) | e.g. 5 min | Real power saving |
| Privacy overlay | Covers the screen with a dark, semi-transparent layer so passersby can't read it | e.g. 5 min (independent) | No gradual fade — fully hidden the moment it triggers |
| Lock screen | Triggers Windows' own native lock screen | e.g. 15 min | Full security |
Settings → Accounts → Sign-in options. Some machines have a dropdown asking when Windows should make you sign in again after you've been away — not every machine has it, so if you can't find it, yours doesn't. Where it exists, you set one timer, and all it does is lock the screen: no gradual dimming to save power beforehand, no way to hide the screen from view sooner than the lock itself, and no separate timer for each behavior.
Best for: Basic security with zero setup. Limit: No power savings, no privacy layer before the lock, one timer for everything.
Set your own idle-minute threshold for each: dim the backlight after, say, 5 minutes (real hardware brightness reduction — falls back to a visual overlay automatically if a specific monitor doesn't support DDC/CI), cover the screen with a privacy overlay on its own timer, and lock after a longer delay like 15 minutes. Adjustable opacity for the overlay, adjustable brightness floor for the dim, and test/preview buttons so you can see the effect without waiting for the real timer.
All three restore automatically the instant you're back — the overlay hides within about a second of any input.
Best for: Anyone who wants real power savings plus privacy, not just a lock screen. Honest limit: Backlight dimming needs a monitor that supports WMI (laptop panels) or DDC/CI (most external monitors, but not all) — unsupported displays automatically use the overlay instead.
Dimming lowers the monitor's actual backlight brightness via hardware — genuine power savings. The privacy overlay is a separate action: a dark, semi-transparent layer over the desktop so passersby can't read it. They run on independent thresholds.
PowerDoze tries real hardware backlight control first (WMI for laptop panels, DDC/CI for supported external monitors) — a genuine power-saving reduction. If a monitor doesn't support DDC/CI, it automatically falls back to the visual overlay for that display.
Presence Sensing lives under Settings → System → Power & battery → Screen and sleep, and only appears if the PC has a hardware presence sensor. It can turn the screen off when you leave — no dimming, no privacy overlay. PowerDoze uses ordinary idle detection, works on any PC, and adds three independent actions.
The privacy overlay hides within about a second of any input (checked every 150ms). Backlight brightness comes back within a few seconds, when PowerDoze runs its regular status check.
Usually not. Dimming, the privacy overlay, and locking pause while the foreground window is any of these: a window that fills the whole screen; an app on the built-in meeting list (Teams, Zoom, Webex, Slack, Discord, and others); or an app on your Whitelist. A window hidden behind another one doesn't count. For video in a window, or a video call in your browser (Google Meet, for example), add your browser or player to the Whitelist yourself.
Yes. Backlight dimming works on any DDC/CI-capable external monitor (most modern ones), and the privacy overlay and lock work on any display.
Away mode is a PowerDoze Pro feature (one-time purchase, not a subscription) — dim, privacy overlay, and lock each have their own threshold slider, plus test/preview buttons.
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