[心得] 換新機前檢查一下影音有沒有支援HDCP 2.2
這個問題之前可能比較少人注意,但現在Xbox One S跟PS4 Pro出來之後,
一個可以放4K UHD BD,一個可以支援部分4K gaming,
大家在買之前可能要檢查一下自己的設備有沒有支援HDCP 2.2(那啥?)
首先說一下HDMI接口/線材要2.0以上才能傳輸4K訊號這可能比較多人知道,
但HDCP 2.2是另外的一種加密/防拷規格,要擴大機端/電視端都支援,
比較早期宣稱可支援4K的擴大機/電視其實只單純支援4K訊號"通過"
如果碰到HDCP 2.2的設備(如部分4K player/4K BD/兩種新遊戲主機)加密之後,
一是可能降格回1080P,二是可能跳出訊息告訴你,你的設備不支援HDCP 2.2
像Netflix的4K訊號就有HDCP 2.2的加密,所以沒有更新設備的話是沒辦法看4K訊號的
網路上有人買了Xbox One S之後發現自己的擴大機不支援這規格,
所以操作介面是4K,但放4K BD進去之後變成1080P,
PS4 Pro屆時可預期應該也會出現類似狀況
當然網路上似乎也有賣家在賣HDCP 2.2轉HDCP 1.4的轉接頭,
但....."可能是違法",
所以大家在換新機的時候可能也要檢查一下擴大機/電視囉
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