Can this display show HDR?

This check asks the browser about the current screen and rendering path. It updates if you move this window to another display.

Detected signals

Graphics HDR output

—

Video HDR output

—

Display P3 gamut

—

Rec. 2020 gamut

—

CSS HDR range control

—

Browser

—

Optional visual check

Select a known HDR gain-map JPEG. The file stays on this device and is not uploaded. In a supporting HDR browser, the right image may show brighter highlights than the SDR-limited version.

Why this is not a certification: browsers do not expose measured peak luminance, operating-system HDR settings, cable capability, or whether a display is calibrated. A positive result means the browser reports an HDR-capable path; visual confirmation with known HDR content is still recommended.