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January 26th, 2026 08:28
P2419H, second in MST
I am wondering if the Dell P2419H monitor supports MST for a daisy chain setup. When I use DP out to the primary monitor and daisy chain to this one, the displays are not detected and the screens mirror. I can’t find Display Port 1.2 or MST in the menu or anywhere. Does the feature exist on this monitor? If so, where?
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ejn63
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30.4K Posts
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January 26th, 2026 12:06
It's unlikely due to the age of this monitor.
DELL-ChrisM2
Community Manager
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January 26th, 2026 12:41
@Agid
We need more data =
What is the first monitor model?
What specific computer model?
What operating system?
List all video OUT ports are on the computer
Agid
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January 26th, 2026 16:03
@DELL-ChrisM2
The first monitor is a Samsung S27H850QFN. It is connected to a KVM switcher (issue persists when bypassing the switcher) I have tried with an intel chip with Nvidia graphics card in a laptop. I have also tried it on my pc, with NVIDIA 5060Ti GPU. Both should support MST. Operating system is Windows 11.
Agid
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January 26th, 2026 16:07
@Agid
Also note that every chord is Display port. I am running PC/laptop-DP-> KWM -DP-> Samsung monitor -DP-> Dell monitor
DELL-ChrisM2
Community Manager
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818 Posts
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January 26th, 2026 16:53
The second monitor in the MST daisy chain should not need a MST setting.
All you have to do is set the first Samsung S27H850QFN DisplayPort:MST/DisplayPort:SST, page 42.
When connecting a PC using DP cable, you must set DP OUT mode to "DisplayPort: MST (SST)" on
the OSD menu. (OSD – System – DP OUT - DisplayPort:MST/DisplayPort:SST)
Make sure that the device (computers) supports DisplayPort:MST (Daisy Chain)/HBR2 (High Bit Rate).