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I have the following setup:
PC -> HDMI -> Denon AVR -> eARC output HDMI -> QN95b TV (eARC input)
PC output is HDMI 2.0b. HDMI cables are 2.1, certified and 48gbps.
My problem is when the PC plays any type of audio everything starts to lag. Mouse lags, games lag, audio desyncs, etc. It recovers when I stop the audio. This happens on any picture mode on TV.
The thing is, this doesn't happen when the TV is on Game Mode. Audio works perfectly fine and there is no lag.
Does anyone have any idea what the issue could be?