This is from Dell Support on how to daisy chain two Dell Monitors: How to Daisy Chain Multiple Monitors Using DisplayPort Multi-Stream Transport (MST) | Dell US
What is DisplayPort Multi-Stream Transport (MST)?
DisplayPort Multi-Stream Transport allows you to daisy chain monitors with DisplayPort v1.2. "Daisy chaining" is a term that describes the ability to connect a series of devices together using a single connection between each two devices. DisplayPort daisy chainable monitors have both a DisplayPort input and a DisplayPort output. The DisplayPort output connects to the next downstream monitor. This cabling arrangement, with one DisplayPort cable between each set of monitors, provides a less cluttered system configuration.
Before getting started, the following is required:
Table 1: Maximum number of monitors that you can daisy-chain using DisplayPort 1.2 MST
- Compatible video or graphics card (GPU) with DisplayPort 1.2 port
- DisplayPort 1.2 MST-capable monitor
- Latest video or graphics card (GPU) drivers
Display resolution Maximum number of monitors 1680 x 1050 5 1920 x 1080 4 2560 x 1600 2 3840 x 2160 (UltraHD, 4K)
4096 x 2160 (4K x 2K)
How to connect two monitors in a daisy chain using DisplayPort MST?To connect your PC to multiple monitors using DisplayPort MST:
- Verify that the video or graphics card (GPU) on your PC supports has a DisplayPort 1.2 MST
- Connect your PC to the DisplayPort In on the first monitor.
- Connect DisplayPort Out on the first monitor to DisplayPort In on the second monitor (Figure 2).
To daisy chain more than 2 monitors, follow a similar sequence, first monitor connects to second, second monitor to third and so on.
- Using the On-Screen Display (OSD) menu, Enable DisplayPort 1.2 on your monitor.
To learn more, refer to the User Manual of your monitor.
- Ensure that the last monitor in the chain has DisplayPort 1.2 mode Disabled.
Figure 2: Connecting 2 monitors in a daisy chain using DisplayPort 1.2 MST
Frequently asked questions