Low-latency laptop-as-external-display solution for gaming
A way to use a laptop screen as a display output for external devices (like gaming consoles) with minimal input lag (sub-500ms), without relying on workarounds like screen capture software that introduce perceptible delay.
SOURCE TRANSMISSION
how 2 Duplicate screen with #niriWM 2026 UPDATED TUTORIAL 1. open OBS Studio 2. create Screen Capture source 3. select niri Dynamic Cast Target 4. niri msg action set-dynamic-cast-monitor 5. Open Preview Projector to 2nd display success!! you've done it!!! screen mirroring complete ✅
“I wish there was a little delay way to use laptop screen as tv. I have no tv currently but I cant play wii games with an bigger than 1 second delay from OBS. I know this is because the HDMI port is only output and not input. So you have to fake your input to be the webcam input or something as USB.”
CLASSIFIER RATIONALE
Post expresses a genuine technical gap: the author wants to use a laptop as a display for gaming consoles with minimal latency, but current solutions (like OBS screen capture) introduce unacceptable delay. The parent context shows attempted workarounds that don't meet the need. This is a real category of problem (low-latency display input for laptops) that would have broader appeal beyond this specific use case.
CAPTURED June 15, 2026 at 02:55 UTC · STAGE 1+2 CLASSIFIER