S
StephenDeBoer
I have my PC connected from an Geforce RTX 3080 to a Sony KD-85X80K TV, which shows that it has a 120 Hz refresh rate through HDMI inputs 3 and 4. Before learning that ports 3 and 4 are the ones that support 120 Hz , I had the HDMI connection to the HDMI 1 port, and was operating at 60 Hz without issue. After swapping the input to HDMI 4 (3 is the ARC channel), I'm able to run at 3840 x 2160 @ 120 Hz, but infrequently the screen will go black for a second or two, then return. This appears very similar to the temporary black screen I receive on the TV when I change resolution or refresh rate,
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