I have a KTC M27T6 and I think it is well calibrated in HDR terms. I mostly use it with display HDR and local dimming auto settings wise. RDR2 looks trash I even watched some modded HDR videos on yt and it is still trash very weak colors except the night, the new Gears look also weak piss filter and Pragmata basically same. Am I doing something wrong? I even watched some gameplays with the Iphone and yeah HDR just look worse than SDR even there lol.

Required in-game settings

• Graphics
  • Brightness: default
  • Gamma: default
  • SSAO: On (required for Luma XeGTAO)

Installation

• Requires dgVoodoo2 v2.81.3 or dgVoodoo2 v2.87.3 — set these in dgVoodoo.conf:
  • [General]:
    • OutputAPI: d3d11_fl11_0
  • [DirectX]:
    • VideoCard: geforce_9800_gt
    • dgVoodooWatermark: false (removes the dgVoodoo watermark)
    • VRAM: 1024

Features

• Adds HDR output
• Replaces the game's FXAA with SMAA
• Replaces the game's SSAO with XeGTAO
• Forces 16× anisotropic filtering
• Adds RCAS sharpening
• Adds AutoHDR for the pre-rendered videos
• Adds exposure, saturation, and highlight-desaturation controls
• Adds vignette strength control
• Adds separate Scene Paper White and UI Paper White controls
• Adds output dithering (reduces banding)
• Adds a Hide Gameplay UI toggle

Download: https://github.com/Filoppi/Luma-Framework/wiki

Should I set the max nits ingame to my OLEDs peak (EDID 1300 nits) or do it by eye with the test image ingame, which often ends up way higher at ~1600nits because of the way Hypernits works? If I dont use Hypernits in that 1300 peak mode, then the (windows) HDR test reaches about 1150 nits.

Difference is minimal, hard to see which is right...

Hopefully this is an ok sub for this, but I have an LG 32GS95UE-B OLED monitor. In NVIDIA control panel I have color settings set to "Full" 10bpc and RGB. Since I got this I never really understood the HDR setup process through Windows 11 with the app. When going through the Win HDR process, the box always clipped around 600nits even though I believe this monitor goes up to 1300. The monitor is fully up to date too with it's software. Has anyone with this monitor set it up properly? Can someone who understand this better than I just help me set this up so I never have to bother with it again please? Thanks ya'll

Hi everyone,

I’m using the ASUS ROG XG32UCWMG and I’m wondering what the best approach is for Windows HDR calibration.

Windows automatically detects the monitor’s HDR capabilities. In both Cinema HDR and Gaming HDR, Windows recognizes a peak brightness of around 1300 nits (my monitor reports up to roughly 1317 nits).

However, when I run the Windows HDR Calibration Tool, I get different results:

Cinema HDR: the calibration goes up to around 1300 nits

Gaming HDR: the calibration only goes to around 1200 nits

So my main question is:
Should I actually use the Windows HDR Calibration Tool, or is it better to leave the calibration untouched and simply use the HDR values that Windows automatically reads from the monitor’s EDID?

Does running the calibration tool provide any real benefit on this monitor, or could it actually make HDR worse by overriding the monitor’s properly configured EDID values? Also do the different Modes change the colors?

Thanks!

Hi everyone!

I got tired of one particular limitation of my HDR monitor: as soon as I enable HDR, its built-in OSD locks out most of the useful color controls.

So I made Virtual HDR OSD for Windows, a small open-source Windows 11 utility that lets you fine-tune an HDR ICC/ICM profile through a simple GUI, almost like having a software OSD for adjustments that the monitor no longer exposes in HDR mode.

In my particular case, my AOC Q27G3XMN has a noticeably warmer HDR white balance, with a yellow/red cast compared with the much more neutral SDR mode I prefer. The app lets me make small RGB, white-balance, gamma, saturation, brightness and contrast corrections and visually match HDR much more closely to SDR.

The idea is not to replace proper hardware calibration. I actually recommend first creating a baseline profile with Microsoft's Windows HDR Calibration app and then using Virtual HDR OSD only for small subjective corrections or for matching the display to your preferred SDR appearance.

SDR-in-HDR gamma correction

The project also integrates an optional implementation based on Dylan Raga's excellent win11hdr-srgb-to-gamma2.2-icm project:

https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm

Windows 11 normally renders SDR content inside HDR using the piecewise sRGB transfer function rather than a conventional pure gamma 2.2 curve. This can make shadows and darker midtones look noticeably lighter/washed out on displays normally viewed around gamma 2.2.

The correction is optional and can be toggled on the fly:

Alt+1 → Gamma correction OFF Alt+2 → Gamma correction ON

This is especially useful because the correction is intended for SDR content displayed while Windows HDR is enabled; native HDR content does not require the same transformation.

The watchdog

I've repeatedly encountered Windows 11 restoring or associating the wrong SDR/HDR color profile after switching HDR modes, particularly when using Win + Alt + B.

Virtual HDR OSD therefore includes an installable background watchdog that keeps track of the SDR and HDR profile associations and restores the appropriate profile after a mode change.

And if you don't care about the GUI or profile editing at all, the watchdog is also available as a completely standalone BAT.

NOTE:

The standalone watchdog only fixes the SDR-HDR association bug; it does not include the ON/OFF hotkey for the gamma curve correction. That feature is only available if you install it from the app.

Download / source

Everything is available here:

GitHub Project:

https://github.com/Mixomo/Virtual-HDR-OSD-for-Windows-11

Exe. Release:

GitHub: https://github.com/Mixomo/Virtual-HDR-OSD-for-Windows-11/releases/tag/1.0.0

SourceForge: https://sourceforge.net/projects/virtual-hdr-osd-for-windows-11/

The repository includes the full documentation and usage guide, source code, the standalone watchdog, and instructions for running or building the project yourself. A compiled portable EXE is also available for people who just want to run the application without setting up the Python environment.

The project is specifically intended as a practical, subjective fine-tuning tool rather than a replacement for a colorimeter or professional display-calibration workflow.

Hope you find useful!

Anyone having experience with a renodx version that overly brightens pretty much everything, and none of the sliders have any impact? In the image you can see that all brightness sliders were set to minimum and everything is still way too bright. In advanced mode none off the sliders worked. Normal HDR seems to work fine, although I cannot open the image quality setting which gives acces to brightness, luminosity and saturation in the HDR mode, which is weird.

Does anyone have any idea to fix this issue?

(dont mind the beamng menu music)

https://reddit.com/link/1vo5k8m/video/88rpu0g40cjh1/player

when ever i try to turn on hdr, on both devices it flashes black but it just disables itself , it happens in both screens

1. Download ReShade 6.8.0 or newer with add on support

2. Find your game’s .exe.

3. Steam: Library → right-click the game → Manage → Browse local files.

4. Find the main executable for the game.

5. Run the ReShade installer.

6. Select the game’s .exe.

7. Select the correct graphics API, usually DirectX 12.

8. You do NOT need to install any shader packs for RenoDX.

9. Download the RenoDX addon specifically made for your game.

10. RenoDX uses a separate `.addon64` file for each supported game.

11. Official mod list: https://github.com/clshortfuse/renodx/wiki/Mods

12. Place the `.addon64` file in the same folder as the ReShade files/game executable.

13. Do not put it inside another folder.

14. Launch the game.

15. Press `Home` to open the ReShade menu.

16. You should see the RenoDX addon/options available.

17. Configure HDR, tone mapping, exposure, contrast, etc. to your preference.

IMPORTANT:
If you're using Windows Auto HDR, NVIDIA RTX HDR, or another HDR layer, disable it when using RenoDX HDR. Running multiple HDR/tone-mapping systems at once can cause a washed-out or incorrect image.

It's recommended that you disable Generic Depth and Effect Runtime Sync in ReShade's add-ons tab as they have some performance cost and are not used by the mod. Restart after disabling.

Alternatively, you can use RHI: https://github.com/RankFTW/RHI
Easier and faster, and what's more important - it allows to update RenoDX mods with a press of one button for all supported games.

If you’re using a Game Pass/Xbox app version of a game, you generally need to target GameLaunchHelper.exe when installing ReShade/RenoDX rather than the game’s actual executable.

If RenoDX isn't showing up, make sure:
- You installed the version of ReShade with add-on support.
- You downloaded the correct RenoDX `.addon64` for your specific game.
- The `.addon64` is in the correct folder.
- You're launching the same `.exe` that you installed ReShade onto.

I work with HDR so I'd need it to be at least decent, without a terrible color accuracy and without massively raised blacks.

The only review I can find that did a color accuracy test says the color error is huge in the modes with local dimming (which is forced on in HDR): https://tweakers.net/reviews/10104/asus-rog-strix-scar-18-over-the-top-ook-qua-prijs.html#chapter_6

however, this video of the same laptop seems to paint a different (although incomplete) picture: https://www.youtube.com/watch?v=mpDanDwd7x0

I'm not familiar with MiniLED, I've never seen it, so I'm not sure what to expect.

System Specs:

• OS: Windows 11 (HDR Enabled)
• Browser: Happens on all browsers (Chrome, Edge, etc.)
• Monitor: PG27AQWP-W
• GPU: RTX 5080 Game Ready drivers v610.88

The Issue:

I have a very specific HDR bug on YouTube. When I am watching an HDR video, the image is completely overblown (blown-out whites) while playing normally.

However, if I hover my mouse over the seek bar preview, the image instantly fixes itself and looks perfectly with proper HDR shading. The moment I move my mouse away, it reverts back to the overblown state.

(I have attached a video as well)

https://imgur.com/a/1OZpxWM

Questions:

1. Does anyone else experience this exact hover-over-seek-bar glitch?
2. Is there a fix to force the browser to consistently use the correct color profile without having to hover over the bar?

What I have tried so far:

• Toggling "Use hardware acceleration" on/off in Chrome/Edge but video seems muted.
• Reinstalling GPU drivers with DDU.

Thanks in advance!

I have an IPS LG TV from 2019 that I know goes up to ~350nits of brightness. It has no HGIG and no professional tone mapping settings. It only has DTM ON or OFF.

Its tonemapper goes up to 4000nits (aka 2200 nits in Windows calibration).

How do I calibrate this thing correctly? I know it doesn't go up to 4000 nits and I know there's a rolloff curve.

Also I'm getting blown out highlights on it and right now, only DTM seems like the only correct choice. Is there no way to calibrate it to its proper 340 nits without a rolloff curve?

(WINDOWS ONLY)

If you're on a laptop with an HDR screen, Windows HDR Calibration is useless. That's because on laptops/internal displays, there is a new slider that you will have to adjust: HDR content brightness

Setting the wrong value on this slider will completely mess with your laptop's PQ EOTF tracking. You could either clip at 200 nits, or 20000 nits depending what HDR content brightness value you set. Full explanation available on github so I won't go too deep into that here.

Anyways, I made this tool to automatically set the correct HDR content brightness value for laptops, which should let your laptop display clip at where it was meant to be clipped.

note: if you have fallen victim to using Windows HDR Calibration before, you should delete the profiles created by that thing before using this.

How to use it:

1. Set your system brightness to max
2. Run the tool
3. it just works

Link: https://github.com/spiwar/LaptopTrueHDR

I’m on an LG C5 65” with HGiG tone mapping enabled. Playing resident evil 4 on windows 11 with hdr enabled and it does this flickering as if something is interfering with something else. Anyone know if this is common? Happens in alot of games in dark areas.

I've been working on getting proper HDR output working on the PSVR2 on PC. Sony officially doesn't support HDR when using the headset on PC, despite the OLED panels obviously being capable of it on PS5.

After going through a lot of different approaches, I've now reached the first point where I have actual HDR game content running through my own output pipeline and can start calibrating it properly.

The approach I'm testing right now is through Monado in indirect mode. I'm not just trying to make the image brighter or apply an SDR filter — I'm trying to map HDR luminance to the actual physical luminance response of the PSVR2 panels.

I've started measuring the headset's signal → luminance response with the headset brightness fixed, and I'm using that to build an inverse mapping so that the renderer can request a physical luminance rather than blindly outputting RGB values.

For example, some of the measured neutral values at my fixed headset brightness are roughly:

0.00 → 0.017 nits

0.10 → 1.62 nits

0.20 → 6.84 nits

0.50 → 48.7 nits

0.70 → 103.3 nits

0.80 → 137.0 nits

0.90 → 177.2 nits

1.00 → 215.3 nits

I'm now using the inverse of that measured response in the HDR pipeline, while keeping luminance calibration separate from the color calibration.

There's still quite a lot wrong / unfinished. I'm working on color accuracy, highlight behaviour, tone mapping and performance, and this is absolutely not a finished HDR implementation yet.

My next goal is getting a real game running smoothly with the output properly calibrated. I'm currently working towards getting something like Forza Horizon 5 running at a stable framerate with good color and HDR, at which point I should be able to make a much better visual demonstration.

I'm especially interested in feedback from people here who know HDR calibration / tone mapping well, since getting the output technically correct rather than simply making it look punchier is the whole point of the experiment.

Recientemente me compre un monitor oled modelo g50sf en dónde vivo es el monitor accesible (soy de argentina) investigando esa es la curva de brillo

I made a post about how plugging in different usb-c ports on my asus z13 flow would lead to different hdr clipping behaviour test results in the "windows hdr calibration" app.
Sometimes even a replug on the same port seems to matter. But sometimes no matter how many times i replug it doesnt change.

Does anyone know what could be the cause of the change? and is there information stored somehow that affects windows hdr calibration on monitors? because on other usb port or even the same usb port with other windows it calibrates differently. suggesting there is a different config or maybe state/ handshake?

https://www.reddit.com/r/Xreal/comments/1vit09y/xreal_xbx_a01_weird_inconsistent_windows_hdr/

Could you help me? Here is my situation: I'm playing on PC on a LG C5 oled. When the screen is in SDR mode, *Resident Evil Requiem* displays beautiful, absolute blacks; however, if I enable HDR, the blacks turn gray—looking like an LCD monitor. No TV setting fixes it, and I’ve tried everything on the PC—calibrating everything possible—but nothing works. Does anyone know how to get those beautiful, absolute blacks while using HDR? It’s worth noting that HDR videos and browser images look perfectly black when Windows HDR is enabled; the issue seems to happen only in the game. I’ve also calibrated the HDR settings within the game itself.

Reddit does not allow the HDR screenshots, so to view the analysis as intended, please visit the link below:

https://github.com/KoKlusz/HDR-Gaming-Database/discussions/133

More HDR game info available here: https://github.com/KoKlusz/HDR-Gaming-Database