Unless the standard has been substantially relaxed since HDMI v1.3a, it sounds like a downstream issue. Citing § 7.5 normative language: > An HDMI Source shal

Unless the standard has been substantially relaxed since HDMI v1.3a, it sounds like a downstream issue. Citing § 7.5 normative language: > An HDMI Source shall be capable of transmitting audio and video data streams with no more than ±2 msec of audio delay relative to the video.