6900XT HDMI 2.1 -> Missing 4K120Hz

[Adolfo Rodrigues]

xrandr --newmode "3840x2160_120.00" 1188.00 3840 4016 4104 4400 2160 2168
2178 2250 +hsync +vsync
xrandr --output HDMI-A-0 --mode "3840x2160_120.00"

output -> xrandr: Configure crtc 0 failed

HDMI output does not seam to be running at 2.1 specs...

On Sun, Feb 28, 2021 at 11:12 PM Adolfo Rodrigues <adolfotregosa at gmail.com>
wrote:

> atm, 5.10.0-14-generic (latest ofered by kubuntu 21.04 daily) but I did
> try 5.11.0-051100-generic from
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11/ and no change.
>
> On Sun, Feb 28, 2021 at 11:06 PM Ernst Sjöstrand <ernstp at gmail.com> wrote:
>
>> Which kernel version are you running?
>>
>> Den sön 28 feb. 2021 kl 23:48 skrev Adolfo Rodrigues <
>> adolfotregosa at gmail.com>:
>>
>>> 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 ?
>>>
>>>
>>> _______________________________________________
>>> amd-gfx mailing list
>>> amd-gfx at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>>
>>
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