How to Daisy-Chain Monitors
Connect multiple displays through a single port using DisplayPort MST, with fewer cables to your PC.
Overview
Daisy-chaining lets you link monitors one to the next using DisplayPort Multi-Stream Transport (MST), so only one cable runs to your PC. This guide covers the requirements, setup, and limitations.
Daisy-chaining monitors.
Key Takeaways
- Requires DisplayPort 1.2+ with MST support.
- Monitors must have DisplayPort-out (not just in).
- One cable runs to the PC; the rest chain monitor-to-monitor.
- Total resolution is limited by the DisplayPort bandwidth.
Requirements
- GPU with DisplayPort 1.2 or newer and MST support.
- Monitors with both DisplayPort-in and DisplayPort-out.
- DisplayPort (or USB-C/Thunderbolt) cables between each monitor.
- MST enabled in each monitor’s on-screen menu.
How to Set It Up
1. Connect your PC’s DisplayPort/USB-C to the first monitor’s DP-in.
2. Connect the first monitor’s DP-out to the second monitor’s DP-in.
3. Repeat for additional monitors.
4. In each monitor’s OSD, enable "DisplayPort 1.2/MST".
5. In Windows Settings > System > Display, set Extend and arrange the monitors.
Benefits and Limitations
- Benefit: fewer cables to the PC and a tidier setup.
- Benefit: uses a single GPU output for multiple screens.
- Limitation: shared DisplayPort bandwidth caps combined resolution/refresh.
- Limitation: HDMI cannot daisy-chain; MST is DisplayPort/USB-C only.
Troubleshooting
Problem: Second monitor stays blank.
Solution: Enable DisplayPort 1.2/MST in the first monitor’s OSD; MST off makes it mirror or drop the chain.
Problem: Can’t reach desired resolution on all screens.
Solution: DisplayPort bandwidth is shared — lower resolution/refresh, or use DP 1.4 hardware.
Problem: Only mirrors, won’t extend.
Solution: Set Extend in Display settings and confirm MST (not SST) mode on the monitors.
Problem: My monitors have no DP-out.
Solution: They can only be the last in a chain or not chained — use separate GPU outputs or an MST hub instead.
Conclusion
Daisy-chaining via DisplayPort MST is a neat way to run several monitors from one PC port with minimal cabling. Just ensure your GPU and monitors support MST with DP-out, enable it in each OSD, and remember bandwidth limits the combined resolution.
