scaled
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If you use Gnome with wayland, you can’t setup bigger resolution that presented on screenshot.
If you use Gnome with X11, you can easily create modeline with 34.85 hz frequency.
./cvt12 3840 2160 34.85 -b
# 3840x2160 @ 34.850 Hz Reduced Blank (CVT) field rate 34.850 Hz; hsync: 76.530 kHz; pclk: 300.00 MHz
Modeline "3840x2160_34.85_rb2" 300.00 3840 3848 3880 3920 2160 2182 2190 2196 +hsync -vsync
Also, for “weston” window manager on wayland you can use this modeline to setup 4K@34.85hz resolution
Add this to ~/.config/weston.ini
[output]
name=HDMI-A-1
mode=300.00 3840 3848 3880 3920 2160 2182 2190 2196 +hsync -vsync
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