screens.sh

#!/bin/bash

# Replace these values with your actual setup
DISPLAY_NAME="HDMI-1"
WIDTH=2560
HEIGHT=1080
CUSTOM_MODE_NAME="${WIDTH}x${HEIGHT}"

# Use cvt to generate modeline data
MODELINEDATA=$(cvt $WIDTH $HEIGHT | grep Modeline | cut -d' ' -f4-)

# Add custom mode
xrandr --newmode "$CUSTOM_MODE_NAME" $MODELINEDATA
xrandr --addmode $DISPLAY_NAME "$CUSTOM_MODE_NAME"

# Apply the new resolution
xrandr --output $DISPLAY_NAME --mode "$CUSTOM_MODE_NAME"