Refresh Sync: Fix black screens by syncing multi-monitor refresh rates

Hey Product Hunt! 👋 I'm Alex, and I built Refresh Sync after months of frustration with my multi-monitor setup. The problem: Windows 11 + mixed refresh rates (240Hz + 144Hz + 60Hz) = constant black screens, GPU driver timeouts, and stuttering. AMD literally documents this as a known issue in their driver notes, but the "fix" never came. What I tried: Disabling MPO, turning off hardware acceleration, switching cables, reinstalling drivers, unplugging monitors. Nothing worked reliably. So I built Refresh Sync: A tiny portable EXE that: 🔹 Auto-detects all your monitors and their supported refresh rates 🔹 Finds a common Hz that works across selected monitors 🔹 Syncs them with ONE click 🔹 Saves your original settings - restore anytime, even after reboot 🔹 Zero dependencies, zero bloat - pure Win32 API via ctypes Who it's for: Anyone running Windows 11 with 2+ monitors at different refresh rates. Especially AMD GPU users (I'm on a 7900 GRE). Built this solo after getting tired of my screens going black at the worst moments. If this sounds like your setup, I'd love to hear your thoughts - and whether it fixes things for you too!