Washed-out highlights, crushed shadows and strange saturation usually come from a mismatch between source, operating-system output, game settings and the monitor preset. Solving colour and HDR problems on a QD-OLED monitor works best as a layered test. The ASUS XG27AQDPG supplies DisplayHDR 500 True Black and 99% DCI-P3 at R23,899.

Quick Answer

Confirm whether the source is SDR or HDR, then match the operating-system state and game output to that content. Start the XG27AQDPG from a neutral preset, inspect black detail, highlights, greys and familiar colours, and change one control at a time. Do not treat 99% DCI-P3 as proof that every mode is calibrated or force SDR material through an unsuitable HDR path.

1. Name the active content mode

Open a known SDR image and a known HDR clip or game scene separately. Record whether system HDR is on, which display is selected and which picture mode the ASUS uses. A mismatch at this level can make later colour adjustments chase the wrong problem.

Evetech's OLED display range helps compare HDR and colour specifications among individual monitors.

2. Restore a neutral baseline

Reset only the affected picture preset. Turn off exaggerated contrast, colour enhancement and sharpening for the first test. Set brightness for the room, keeping direct glare away from the screen.

Use a greyscale to look for tint and clipping. If several dark steps merge into black, adjust the relevant shadow or black-level control carefully. If bright steps disappear into one white patch, reduce the setting that clips highlight detail.

3. Check the signal range

Connect directly through HDMI 2.1 or DisplayPort 1.4 and confirm native QHD. Inspect the graphics output range and monitor input setting when blacks look grey or dark detail is crushed. Source and display must interpret the range consistently.

The gaming monitor catalogue gives context for inputs, resolution and HDR labels.

4. Calibrate the HDR game

Enable the required system HDR route, launch the game and follow its black-point and brightness screens in order. Use a scene containing deep shadow, mid-tones and a small bright highlight. Save values per title because implementations differ.

DisplayHDR 500 True Black describes the panel's HDR class. It cannot correct a game that is outputting the wrong mode or a source that maps SDR incorrectly.

5. Interpret 99% DCI-P3 carefully

The gamut figure shows broad colour coverage. It does not specify the accuracy of every preset, white point or application. Inspect natural subjects and neutral elements. If ordinary content looks neon, return saturation and colour-space handling toward the baseline.

6. Keep motion settings separate

The XG27AQDPG also reaches 500Hz, lists 0.03ms GTG, supports both major adaptive-sync routes and includes OLED Anti-Flicker 2.0. Do not change those timing features during the first colour test. A motion fault and a colour fault can occur in the same scene without sharing a cause.

The curved display category frames screen shape separately from HDR calibration.

7. Use a five-image recovery set

Keep a neutral greyscale, near-black steps, a smooth gradient, a natural portrait and a compact HDR highlight scene. When colour changes unexpectedly, view them in that order through the same application and room condition. The greyscale catches tint, near-black steps reveal crushing, the gradient exposes banding, the portrait identifies unnatural saturation and the HDR scene checks highlight mapping.

If only one game fails, compare its screenshot or known scene with another HDR title while preserving the monitor preset. Rebuild that game's black point and brightness before changing the operating-system output. If every application fails after an input change, inspect the source range and HDR state on that HDMI 2.1 or DisplayPort 1.4 route.

Save the recovered values with input, preset, system HDR state, game version and room light. This small reference set gives the 99% DCI-P3 QD-OLED panel a consistent diagnostic target and prevents random saturation or brightness adjustments from becoming permanent.

8. Verify the fix after changing content mode

Once SDR looks correct, enable HDR and repeat only the near-black, highlight and natural-colour references suited to HDR. Save the HDR values independently. Then return to SDR and confirm that its neutral baseline survived the switch. A monitor that supports both modes should not require one compromised preset to cover them.

Test the working profiles through both the usual game and a familiar video. If one application alone remains wrong, inspect its colour or HDR configuration before changing system output. Also confirm that a new HDMI 2.1 or DisplayPort 1.4 input has not retained a different range.

Name the saved profiles with mode and date, then record the recovery set used. This gives future firmware, driver and game updates a controlled comparison and turns colour repair into a reversible process.

Export the profile card with the game settings so the picture path can be recovered after a clean driver installation or a new source is connected.

Frequently Asked Questions

Why can HDR suddenly look washed out?

SDR and HDR source treatment, system output or the display preset may be mismatched.

What should I use to check shadow detail?

Use a known near-black step pattern and a familiar dark scene with visible texture.

How does the 99% DCI-P3 figure help diagnosis?

It establishes wide gamut capability, while preset accuracy and colour management still need checking.

Can an incorrect game mode alter colour?

Yes. A game can retain separate SDR, HDR and display-mode settings.

Should I reset everything at once?

No. Reset the affected preset, then change one layer at a time.

What does this HDR-capable QD-OLED cost?

The XG27AQDPG costs R23,899.

Ready to trace colour from the source to every OLED pixel? Compare Evetech's HDR monitors and rebuild the picture path with one controlled change at a time.