Turn off the iPad screen

Is it not possible to turn off the iPad screen while I am playing on an external screen via the USB output (via HDMI)? When I try to turn off the iPad, the external screen will also turn off.

What model & year iPad?

What cable, adapter, etc are you using?

What external screen type/model?

  • iPad Pro M4 2024 11” with iOS 18 public beta
  • Adapter Baseus BS-OH099
  • TV LG 32LN5400