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"
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@xxxxxxxxx> 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@xxxxxxxxx> wrote:Which kernel version are you running?Den sön 28 feb. 2021 kl 23:48 skrev Adolfo Rodrigues <adolfotregosa@xxxxxxxxx>: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 ?
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