AVS Forum Addicted Member
Join Date: May 2004
Location: Bull Mountain, OR
Mentioned: 29 Post(s)
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^^^^^ eARC is possible with the HDMI 2.0 chipsets but it's up to the mfr if the chips they used were designed for an eARC firmware upgrade. Not all device mfrs will upgrade their devices for eARC, they'd rather have you purchase a newer unit. For eARC to work properly, both HDMI chipsets on source and sink should support it. Otherwise, you'll just get ARC. It also might be useful to find out which HDMI 2.1 option sets your new devices support. HDMI 2.1 doesn't mean that ALL of the HDMI 2.1 option sets are supported. If the device mfr advertises HDMI 2.1, they are supposed to list which options are currently available according to the marketing guidelines set forth by HDMI.org.
ARC/eARC can be a real headache for some so if ARC/eARC is what you want just be prepare.
I never trust an atom, they make up everything.