6900XT HDMI 2.1 -> Missing 4K120Hz

[Alex Deucher]

On Sun, Feb 28, 2021 at 5:48 PM Adolfo Rodrigues
<adolfotregosa at gmail.com> wrote:
>
> Hi.
> I cannot find a way to enable 4K @ 120Hz over hdmi 2.1. It seams limited to HDMI 2.0b.. is it ?
>
> Under Windows 10 it works fine but not under linux. Why ?

See this article for more background:
https://www.phoronix.com/scan.php?page=news_item&px=HDMI-Closed-Spec-Hurts-Open

Alex