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Codemarks

3840 Res Rescue

Terminal window
xrandr --listmonitors


xrandr --output YOUR_DISPLAY_NAME --mode 3840x2160


# if unhappy:


```sh
# Generate the modeline
cvt 3840 2160


# Add the mode (replace with output from previous command)
xrandr --newmode "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 2168 2237 -hsync +vsync


# Add the mode to your display
xrandr --addmode YOUR_DISPLAY_NAME 3840x2160_60.00


# Switch to that mode
xrandr --output YOUR_DISPLAY_NAME --mode 3840x2160_60.00