Hi
Connecting my Rock Pi 4B to my 4k screen only gives me 30fps.
I’ve tried to add 4k@60fps with xrandr commands but this mode never shows up despite no error message:
linaro@linaro-alip:~$ cvt 3840 2160
# 3840x2160 59.98 Hz (CVT 8.29M9) hsync: 134.18 kHz; pclk: 712.75 MHz
Modeline "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 2168 2237 -hsync +vsync
linaro@linaro-alip:~$ xrandr --newmode "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 2168 2237 -hsync +vsync
linaro@linaro-alip:~$ xrandr --addmode HDMI-1 3840x2160_60.00
linaro@linaro-alip:~$ xrandr
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 8192 x 8192
HDMI-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 621mm x 341mm
3840x2160 29.98*+ 30.00 30.00 25.00 24.00 29.97 23.98 24.00
2560x1440 59.95
2048x1080 59.99
1920x1080 60.00 60.00 50.00 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 74.98 59.90
1280x960 60.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
3840x2160_60.00 59.98
Any help would be appreciated 