Windows 10/117 min readReviewed 2026-07-29

Windows says HDR is not supported on an HDR monitor

Restore HDR capability reporting by checking the selected display, monitor input mode, port, cable, and adapter.

Quick diagnosis

Windows relies on capability data received over the active link; the monitor model name alone does not prove that input path exposes HDR.

Common symptoms

Use HDR is unavailable although the monitor specification includes HDR.
The behavior is repeatable with the same display state.
Changing an unrelated Windows preference does not reliably fix it.

Likely causes

The wrong display/input is selected, deep-color/HDR input mode is off, or an adapter/link omits required capability data.
A connection, driver, or configuration boundary affecting the display.
Hardware failure only if the symptom follows the same display across controlled comparisons.

Before changing anything

Record the current display settings and connection path.
Change one variable at a time.
Keep a known-good comparison device, port, mode, or application available.

Diagnose it in this order

1
Create a repeatable baseline
Reproduce the symptom in a simple Windows surface and record exactly when it occurs: Use HDR is unavailable although the monitor specification includes HDR.
2
Run the discriminating test
Select the exact display, connect it directly, and inspect Advanced display plus the monitor’s supported input mode.
3
Apply the narrow fix
Enable the exact-model HDR/deep-color input option and use a compatible direct port/cable at a supported timing.
4
Repeat the original comparison
Keep every unrelated setting fixed and repeat the baseline for longer than the normal failure interval.

Solutions

Windows says HDR is not supported on an HDR monitor

Enable the exact-model HDR/deep-color input option and use a compatible direct port/cable at a supported timing.

Verify the fix

Windows should report HDR certification/capability and retain Use HDR after restart.
Restart or reconnect once and repeat the same controlled test.
Confirm the change did not create a new failure in the comparison state.

Roll back safely

• Restore the recorded display settings, connection, driver, or mode if the result is not repeatable.

When to stop and escalate

• If the symptom follows the display across another PC or source after the documented checks, use manufacturer support or warranty service.

Related tests and guides

testRefresh rate test

Frequently asked questions

Why test before changing several settings?

A one-variable comparison shows whether the proposed mechanism actually controls the symptom and preserves a safe rollback.

Sources

HDR settings in Windows
Microsoft Support. The wrong display/input is selected, deep-color/HDR input mode is off, or an adapter/link omits required capability data.
Troubleshoot external monitor connections in Windows
Microsoft Support. Direct-link, cable, display detection, and supported graphics-driver troubleshooting.

Diagnose it in this order

Create a repeatable baseline

Reproduce the symptom in a simple Windows surface and record exactly when it occurs: Use HDR is unavailable although the monitor specification includes HDR.

Run the discriminating test

Select the exact display, connect it directly, and inspect Advanced display plus the monitor’s supported input mode.

Apply the narrow fix

Enable the exact-model HDR/deep-color input option and use a compatible direct port/cable at a supported timing.

Repeat the original comparison

Keep every unrelated setting fixed and repeat the baseline for longer than the normal failure interval.

Sources

HDR settings in Windows

Microsoft Support. The wrong display/input is selected, deep-color/HDR input mode is off, or an adapter/link omits required capability data.

Troubleshoot external monitor connections in Windows

Microsoft Support. Direct-link, cable, display detection, and supported graphics-driver troubleshooting.