Best workflow (stable every time)

  1. Configure triples in the sim first (resolution / render mode / bezel / FOV). Save settings and fully restart the sim.
  2. Launch the sim and enter a session to confirm it’s stable (no resets, no stretched view).
  3. Now launch RaceLab and confirm telemetry is connected.
  4. Create a new RaceLab layout and add one overlay window first (test stability), then add more windows.
  5. When you’re happy, save the layout and restart both sim + RaceLab once to confirm it reopens correctly.
Stability tip: Avoid changing sim video settings while RaceLab multi-window overlays are active. If you must change settings, close RaceLab windows first, change settings, restart sim, then reopen RaceLab. [3]

Window mode rules (most common cause of “broken triples”)

Borderless Window (recommended for many setups)

  • Most stable when you alt-tab and when overlay windows are moved between monitors.
  • Works well with multi-window overlays because Windows handles focus changes better.
  • If you see tearing, check refresh rate and GPU settings (don’t blindly toggle everything at once).

Exclusive Fullscreen (can be fragile)

  • Some sims or GPU setups can “fight” external overlay windows in exclusive mode.
  • If triples reset after a settings change, try borderless window and re-test.
  • If you must use fullscreen, keep overlays minimal and avoid frequent alt-tab.

DPI / scaling (fixes mis-sized windows)

Simple rule

  • Try to keep all three monitors on the same Windows scaling (e.g., 100% or 125%).
  • Mixed scaling (100% / 125% / 150%) can cause overlay windows to resize or drift.

If windows “jump” monitors

  • Confirm monitor order (1/2/3) matches real life positions.
  • Make sure your “main display” is the centre monitor (common best practice).
  • Restart RaceLab after changing scaling or display order.

Clean layout tips (looks good + drives well)

Where to place overlays

  • Keep the centre screen clear (apex / braking markers / mirrors).
  • Put “glance overlays” on side monitors (Relative, Standings, Fuel, Weather).
  • Group related overlays together and align edges (looks professional).

Performance basics

  • Start with 1–2 windows, then grow the layout.
  • Reduce overlay update load by keeping only the overlays you actually use.
  • If stuttering appears: test by temporarily disabling the most “data-heavy” overlays first.

Common problems & fixes

Problem Best fix
Triples break after changing video settings Close RaceLab windows → change sim settings → restart sim → reopen RaceLab windows. (Avoid changing video settings mid-layout.)
Overlay window opens on wrong monitor Confirm Windows monitor order + main display → move window back → save layout → restart RaceLab once to confirm.
Overlay size looks wrong Make sure all monitors use the same scaling (100%/125%) → restart RaceLab.
Alt-tab causes focus issues Try Borderless Window mode in the sim. Keep overlays on side monitors and reduce “always-on-top” window conflicts.
FPS drops when overlays enabled Disable overlays one-by-one to find the heavy one → reduce number of overlays/windows → keep layout minimal during racing.

FAQ

Do I need RaceLab Pro for layouts?

  • Layouts are commonly a Pro feature. If layouts/options are missing, confirm your account status inside RaceLab.

Can I run overlays on a 4th monitor?

  • Yes — it’s often easier. Keep your centre driving view clean and place data-heavy overlays on the extra screen.
VR note: VR overlays require RaceLab Pro and the proper VR workflow. This page focuses on flat-screen multi-window / triple screen layouts.
Sources & References [1] General RaceLab multi-window concept: overlays are separate windows that can be positioned on different displays. ↩ back [2] Triple-screen best practice: confirm your sim’s triple screen configuration is stable before adding third-party overlay windows. ↩ back [3] Known pattern from support cases: changing sim video settings while overlays are active can cause triple-screen projection/render resets. ↩ back