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Smart HDR Manager is a free Windows tray utility that switches HDR on only when selected games or genuine HDR video need it, then returns Windows 11 to SDR. That can reduce the time an OLED monitor displays bright, static desktop content with HDR enabled, but there is no evidence that the app repairs permanent panel burn-in.
What Smart HDR Manager actually does
Windows 11 HDR is useful for compatible games and video, yet leaving it enabled for ordinary desktop work can make SDR content look inconsistent and keep bright static interface elements on screen in an HDR workflow. Smart HDR Manager automates the switch instead of requiring the Win+Alt+B shortcut each time.
- It can detect selected games from Steam, Epic, GOG and Xbox, enable HDR when the game starts and restore SDR after the game closes.
- Each game can have its own startup delay, which helps when a title needs time to initialize before Windows changes display mode.
- It supports local HDR playback in VLC, mpv, MPC-HC and PotPlayer.
- An optional RTX Video HDR mode enables HDR only while SDR video is playing on the selected monitor.
- Tray controls, an override hotkey and command-line flags support manual use and Stream Deck workflows.
The developer also describes a fix for Chrome appearing dim after HDR playback. HDR transitions are not instantaneous: Windows and the monitor may resynchronize for one or two seconds, and the display can briefly blank.
How YouTube HDR detection works
YouTube support comes from a companion Tampermonkey userscript rather than from the tray utility alone. The script marks a browser tab only while a real HDR stream is playing, so a normal SDR YouTube video should not trigger an HDR switch.
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- Install Tampermonkey in Chrome or Edge and enable user scripts.
- Install the Smart HDR Manager companion script.
- Start an HDR-capable YouTube stream in a supported browser tab.
- Check the tab title. The developer says
[real_hdr_active]appears while HDR video is detected and[sdr_video_active]appears for SDR playback. - When playback ends or the tab returns to SDR content, the utility switches the monitor back to SDR.
If the markers do not appear, user scripts are probably disabled, the script is not installed or the video is not actually being delivered in HDR. Browser and YouTube behavior can also change independently of the utility.
Does it fix OLED burn-in?
No. The available evidence does not show that Smart HDR Manager reverses permanent OLED burn-in, restores damaged pixels or produces a measured improvement in panel condition. Its defensible benefit is prevention-oriented exposure management.
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By keeping routine desktop work and SDR video in SDR, and reserving HDR for compatible games and genuine HDR footage, the app may reduce unnecessary HDR-on time and the brightness of static desktop elements. That is an inference from its switching behavior, not a laboratory burn-in result. Existing burn-in should be treated as panel damage that software cannot be assumed to repair.
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The developer reports an HDR enable delay of about two seconds for video and a return-to-SDR delay of about five seconds. The return delay is configurable. These pauses allow Windows and the monitor to resynchronize rather than switching repeatedly during brief playback or game-state changes.
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| Event | Reported behavior | Why it matters |
|---|---|---|
| Game launch | Per-game startup delay before HDR is enabled | Prevents switching before the game is ready |
| Video start | About two-second enable delay | Allows playback detection to settle |
| Content ends | About five-second return delay, configurable | Avoids an immediate switch during short interruptions |
| Mode transition | One to two seconds; display may briefly blank | Normal resynchronization between Windows and the monitor |
Compatibility and known limitations
The project is described as beta software. Testing reported by the developer covered Windows 11 25H2, an RTX 5070 Ti and one HDR monitor. AMD and Intel graphics, Windows 10 and multi-monitor setups were not tested at the time of that report.
| Configuration | What is established |
|---|---|
| Windows 11 25H2 | Developer-tested environment |
| NVIDIA RTX 5070 Ti | Developer-tested GPU |
| AMD or Intel graphics | Untested in the reported beta testing |
| Windows 10 | Untested in the reported beta testing |
| Multiple monitors | Untested in the reported beta testing |
Per-monitor targeting is available for features such as RTX Video HDR, but that should not be confused with verified multi-monitor reliability. If you use a second display, test with non-critical work first and confirm that the intended monitor changes while the other remains unchanged.
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Privacy, licensing and installation warnings
The developer describes Smart HDR Manager as free and open source under the MIT license, with no internet access and no telemetry. The utility does not touch game memory, which the developer says should avoid anti-cheat concerns. Those are developer statements, not an independent security audit.
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Smart HDR Manager versus manual HDR switching
| Capability | Manual Win+Alt+B | Smart HDR Manager |
|---|---|---|
| Games | Works when you press the shortcut | Automatic detection for selected Steam, Epic, GOG and Xbox games |
| YouTube HDR | No automatic detection | Uses the Tampermonkey marker script |
| Local video players | Manual | Supports VLC, mpv, MPC-HC and PotPlayer |
| Delays | None to configure | Per-game startup and configurable return delays |
| Privacy | Built into Windows | Developer says no internet access or telemetry |
| Burn-in claim | Neither repairs a panel | Prevention-oriented exposure reduction only |
What to do if switching does not work
- HDR never activates: Confirm HDR is enabled in Windows for the target display, the game or video is genuinely HDR, and the selected application is supported.
- YouTube remains in SDR: Ensure Tampermonkey user scripts are enabled and look for the
[real_hdr_active]marker. - The screen flashes or goes black: Allow the one-to-two-second resynchronization period; do not repeatedly toggle HDR during it.
- Chrome looks dim afterward: Update to the current project build, since the developer reports a Chrome dimness fix, then test the browser again.
- Second monitor changes unexpectedly: Recheck the selected-monitor setting. Multi-monitor behavior was not part of the reported testing.
Bottom line for OLED owners
Smart HDR Manager is best understood as an automatic HDR exposure switch, not a burn-in repair tool. It can make Windows 11 more practical for OLED users who alternate between SDR desktop work, HDR games and HDR video, including supported YouTube streams. Its beta status, unsigned executable, untested AMD/Intel and multi-monitor configurations, and the lack of independent burn-in measurements mean you should treat it as a convenience and prevention aid, not a guarantee about panel longevity.
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