To fix OBS black screen display capture, run OBS as administrator (right‑click → Run as admin). Then go to Settings → Advanced → Renderer → change from "Auto‑Detect" to "Direct3D 11" . For laptops, try Power Saving GPU instead of High Performance in Windows Graphics Settings. Still stuck? In Properties → Display Capture → change "Display" to another monitor (or back). That's how to solve OBS black screen error. 🖥️🛠️