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November 21st, 2023 10:27
XPS 8950, two monitor, Premium support fail!
My Dell XPS 8950 computer with integrated Intel UHD graphics came with exactly ONE video output port, a DisplayPort. So, how to support a second monitor to extend my desktop? My premium Dell support wasted 20 minutes and was trying to tell me I needed a Docking station! I have to admit part of this problem was I purchased (Dell P2722H) monitors that didn’t support DisplayPort “daisy chaining”, which would have required only one cable to handle this. Anyway, if found (and tested) TWO solutions for this:
1. USB3-to-HDMI adapter ($25)
2. DP to 2-DP hub.($40)
I’m mad at Dell for selling a PC like this and not being able to suggest either of these solutions, and not offering their version of a solution as a Dell part (I looked hard). For this I paid $300 for Premium support?
RoHe
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45.2K Posts
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November 22nd, 2023 01:07
You could also install an add-in PCI-e x16 video card that supports multiple monitors, which would probably give you better performance than using the onboard DP port and either of the two solutions you identified.
JamieLinux
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November 29th, 2023 06:21
Now if RoHe could find out from his Dell Rep, I tried to find the info but could not. If the motherboard Supports Displayport 1.2 and MST, the CPU does along with the iGPU, you can daisy chain more than one Displayport Display across one Displayport port. The monitors must also support MST as well.
How to Daisy Chain Multiple Monitors Using DisplayPort Multi-Stream Transport (MST) | Dell US
RoHe
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November 29th, 2023 20:24
The XPS 8950 motherboard supports DisplayPort 1.4. Intel says DisplayPort 1.2 and later versions support MST, if the OEM has configured for it. That still requires the monitors to support MST too.
Probably easier just to connect a multi-monitor DP hub, as @dlflannery did...
RoHe
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November 29th, 2023 20:59
And FWIW, there's this thread...
RoHe
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December 1st, 2023 01:56
Bottom line, onboard Intel Graphics DP will support MST (daisy chaining) but all monitors, except the last one in the chain, have to support daisy chaining. For two monitors, only the first one needs to support MST.
A hub is needed to use multiple monitors if the DP monitors don't support MST, or you want to use HDMI for multiple monitors connected to PC via the onboard Intel DP.
The onboard Intel DP is "dual mode", meaning it will support one HDMI monitor by using a simple passive adapter, one end with DP connector for PC side, and other end with HDMI connector for monitor side, without any signal converter in the adapter.