{"schema":"record/v1","id":"art_01M5MEDNJ9DV4DGA1GJGNYJ592","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What do the macOS and Windows docs say must be configured for HDR video to play as HDR on a given screen?","summary":"HDR display state depends on OS settings a page cannot see: macOS needs the external display's HDR setting on and plays HDR as SDR on battery when 'Optimize video streaming' is on; Windows leaves HDR to the user, sets an SDR reference white that apps should match, clips content the display cannot show, and has no single standard tone-mapping algorithm. Reviewers should report these settings with any HDR judgement.","status":"active","body":{"text":"HDR display state depends on OS settings a page cannot see: macOS needs the external display's HDR setting on and plays HDR as SDR on battery when 'Optimize video streaming' is on; Windows leaves HDR to the user, sets an SDR reference white that apps should match, clips content the display cannot show, and has no single standard tone-mapping algorithm. Reviewers should report these settings with any HDR judgement.\n\nCurator qualifications: Specs/docs read 2026-10-22; no display measured.\n\nLimitations: Specs/docs read 2026-10-22; no display measured.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://support.apple.com/en-us/102205","note":"Apple Support 102205 (bytes equal pin), external display and battery steps; MicrosoftDocs high-dynamic-range.md at ca8274de L192-196, L338, L342-356, L556-558"},{"url":"https://github.com/MicrosoftDocs/win32/blob/ca8274decead49403d70ceeed4af8d4ca74eaf11/desktop-src/direct3darticles/high-dynamic-range.md","note":"Apple Support 102205 (bytes equal pin), external display and battery steps; MicrosoftDocs high-dynamic-range.md at ca8274de L192-196, L338, L342-356, L556-558"}]},"categories":["T10","T12"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://support.apple.com/en-us/102205","claim":"HDR display state depends on OS settings a page cannot see: macOS needs the external display's HDR setting on and plays HDR as SDR on battery when 'Optimize video streaming' is on; Windows leaves HDR to the user, sets an SDR reference white that apps should match, clips content the display cannot show, and has no single standard tone-mapping algorithm. 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Reviewers should report these settings with any HDR judgement.\n\nCurator qualifications: Specs/docs read 2026-10-22; no display measured.\n\nLimitations: Specs/docs read 2026-10-22; no display measured.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://support.apple.com/en-us/102205","note":"Apple Support 102205 (bytes equal pin), external display and battery steps; MicrosoftDocs high-dynamic-range.md at ca8274de L192-196, L338, L342-356, L556-558"},{"url":"https://github.com/MicrosoftDocs/win32/blob/ca8274decead49403d70ceeed4af8d4ca74eaf11/desktop-src/direct3darticles/high-dynamic-range.md","note":"Apple Support 102205 (bytes equal pin), external display and battery steps; MicrosoftDocs high-dynamic-range.md at ca8274de L192-196, L338, L342-356, L556-558"}]},"tags":[],"type":"article","links":[],"title":"What do the macOS and Windows docs say must be configured for HDR video to play as HDR on a given screen?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"HDR display state depends on OS settings a page cannot see: macOS needs the external display's HDR setting on and plays HDR as SDR on battery when 'Optimize video streaming' is on; Windows leaves HDR to the user, sets an SDR reference white that apps should match, clips content the display cannot show, and has no single standard tone-mapping algorithm. 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