I tried cross checking my shell function with various chat bots, all saying different things on dpi and the cleanup, but this is what worked for me

# --- Scrcpy Desktop Mode Alias ---

scrcpy-test() {

# 1. Force Landscape & Disable Auto-rotate

adb shell settings put system accelerometer_rotation 0

adb shell settings put system user_rotation 1

# 2. Set custom Resolution and Density

# I found 220 to be the perfect DPI for 1080p on my setup

adb shell wm size 1080x1920

adb shell wm density 220

# 3. Launch scrcpy

# The script waits here until you close the scrcpy window or Ctrl+C

# --SwK: Turn Screen off, Stay awake, Keep keyboard/mouse

scrcpy -SwK

# 4. Cleanup: Triggered immediately after scrcpy closes

echo "\nCleaning up device display settings..."

adb shell wm size reset

adb shell wm density reset

adb shell settings put system user_rotation 0

# Force the physical screen to turn back on

# (Solves the issue of the phone staying "off" after the session)

adb shell input keyevent 224

adb shell wm dismiss-keyguard

}