Dell mst mac. If you use a dock, it must support two Whether you're working on an Alienware, Inspiron, Latitude, or other Dell product, driver updates keep your device running at top performance. I tried to buy the U2419HC for this setup but it has been out of stock for over a Get drivers and downloads for your Dell Dell Thunderbolt Dock - WD19TB. 1 connected to a DELL U2722DE external monitor with the USB C cable. Click the Dropdown list of the Screen Resolution and select 1920 x 1080 (U2419H/ U2419HX)/2560 x 1440 (U2719D/U2719DX). That could work IF the 90W power delivery from the U2723QE #5 USB Type-C is enough for the MacBook Pro M1 Max to drive itself and two monitors. 56 MB. For some reason they never choose to implement the protocol. The monitors cover 98% DCI-P3, but even when setting the monitors to P3 Yes (2 external monitors) + laptop screen with 1 thunderbolt cable. e computer < - display port -> display #1 < - display port -> display #2) Drive a high-resolution display, that would otherwise require two physical DisplayPort cable Nov 25, 2020 · P2421DC, two, daisy chain, Macbook Air/Pro M1. Could the 15" Macbook air run this monitor as well as utilize the built in USB hub? I'm running the monitor at 2560x1440 only. * Turn the MacBook and monitor off. 3. Same computer, same cable, same movie, same player. Apr 14, 2022 · DELL-Chris M. I can only get them to come up as a pair of mirror monitors, but not to extend desktop on Mac. The monitor features include: 60. 此功能通常指菊链。. Macs support daisy chaining of monitors using Thunderbolt 3 connectivity. This service is temporarily unavailable. Excellent choice for small office environments. The following "Hot Keys" will change the MST settings to MST Secondary. Change history. Format Description: This file format consists of a BIOS executable file. You can connect it as the second display in an MST chain, and I can confirm that this works. I need a personal macbook and am considering the 15" Macbook air. A single MSTI provides no more benefit than RSTP. The source can only be directly from TB3/USB-Type C, DP, or mDP. 3840 x 2160 resolution with full-screen support for lower resolutions. February 23rd, 2023 22:00. Dell SmartFabric OS10 provisioning. Compatibility Plus - The SideTrak USB-C Laptop Docking Station is compatible with Windows MST and Mac SST, offering ten ports including USB-C, USB-A 3. I'm posting this in case others run into the same issue I did, so they know how to solve it. Thin bezels make this an excellent 24″ 16:9 LCD choice! Aug 26, 2022 · MST is supported by Windows 11, Windows 10, Windows 8, and Windows 7. MacBook Pro 2018 with Intel Iris Plus 655, no dedicated GPU. Service Events. Offial Dell website says: "Setting Up Multiple Monitor With Daisy Chain Macs support monitor Daisy-Chain using USB-C Thunderbolt 3 connectivity. he Mac does NOT support daisy-chaining over USB or DisplayPort. For me, with the first display (U2713H with DP 1. Having done a little research it seems that Revision A00 had firmware issues and was updated on 2/24/14 to A01 which got rid of the bugs in the firmware. Find troubleshooting instructions for common video or display issues. The monitor features include: ∞ U2715H: 68. 709, 98% DCI-P3 and 98% Display P3 color coverage. April 4th, 2022 11:00. Do you get the same result? Second, open the first U2723QE Menu --> Others --> Display Info. Oct 13, 2017 · Dell UP2414Q and UP3214Q: Choose Menu > Display Setting > DisplayPort 1. S2722DC. anyone can correct me if I am wrong, but Sep 19, 2023 · Dell Thunderbolt Docking Station WD19TB and WD19TBS link all your electronic devices to your laptop using a single Thunderbolt 3 (USB-C) cable. この機能は、しばしばデイジーチェーン Multi-Stream Transport(MST) 利用 DisplayPort 的微封包架构,DisplayPort 1. Community Manager. The U2720Q has the following video in Having an issue with your display, audio, or touchpad? Whether you're working on an Alienware, Inspiron, Latitude, or other Dell product, driver updates keep your device running at top performance. First, the U2723QE only provides a maximum of 90W to the laptop via USB-C. Notice the Dell logo on the Laptop =. 0 Dell Dock WD15. 」と言いたくなる機能のことを SST （シングル Mar 22, 2024 · This sets up the Heartbeat that monitors the peer system status. Nov 13, 2020 · If you have a CalDigit TS3+ dock, you can connect two displays by using the DP output for one and the USB-C output for the second. This can be done through an MST hub or daisy-chained monitors, and it can work with both traditional DisplayPort cables, and with DisplayPort alt-mode over USB-C. However, it seems to be bandwidth limited (YMMV also depending on GPU, drivers, etc. Apr 4, 2022 · April 4th, 2022 08:00. Even if you connect both USB-C ports to Macbook, it is still recognized as single WD19S docking, thus can only support one monitor. 2 mode on the last monitor in the chain. The monitor features include: 63. Dell Thunderbolt Dock – WD22TB4. e. In this video tutorial I’ll show you how to setup daisy-chaining with two Dell U2414H monitors. Setup: Thunderbolt 3-->1st U2419H DP1. It works with the MacBook Pro 16" seeing both monitors as one monitor, but not two monitors. Oct 23, 2021 · U2421HE, macOS, daisy chain to with U2419H. Monitor 1 is connected via HDMI to USB-C (to Thunderbolt Port on Dock) and monitor 2 is connected via DisplayPort to DisplayPort on dock (the left one). Hi, Two PCs should be connected to two monitors simultaneously (by switching them on the monitor menu). This article may have been automatically translated. Feb 5, 2022 · Feb 6, 2022 2:52 PM in response to inzheneher. And it should work fine, but instead it makes the screen split and the computer sees it as 2 separate screens. ). 2 adapter with the exact same monitor, it’s limited to 60hz. May 22, 2024 · When you connect multiple monitors to your Dell computer, Windows automatically detects the monitor and displays your computer desktop screen. Dec 20, 2020 · On non-M1 systems, it’s possible to install Boot Camp to run Windows, and MST does work in that setup, so it’s an OS/driver limitation, not a hardware problem. Supported Operating System Windows 10 64 Bit, MAC, Ubuntu, Chrome, RHEL Dell Business Class Features PXE Boot5 MAC address pass-through6 Wake-On LAN7 What’s in the Box Dell 7-in-1 USB-C Multiport Adapter – DA310 Documentation Warranty 3 years USB-C (Multifunctional with up to 90W power pass-through, 4K@30Hz display, USB 3. All is working well with single monitor connected. 09. Ensure that the DisplayPort cables support Multi-Stream Transport. Aug 26, 2022 · What is Multi-Stream Transport (MST)? Multi-Stream Transport is a unique feature of DisplayPort that allows for the easy connecting of multiple external monitors to a single system. 2 to 1. File Name: DellDockFirmwarePackage_WD19_WD22_HD22_Series_01. See the documentation of your Dell monitor to learn more. 1a. Jul 4, 2022 · File Format: CPG BIOS Executable for Windows/DOS. The following article contains information about using an Apple Mac computer with a Dell UltraSharp Monitor using a USB-C cable. ∞ Wide viewing angle to allow viewing from a sitting or standing position, or while moving from side-to-side. &nbsp; First tried with both Mar 4, 2022 · Connecting the Macbook to U2723QE with USB-C and then connecting U2723QE to U2719DC through the display port. Hello! I own a Dell WD19TB for more than a year and I mostly used it for my companies notebook (Dell 5520) which works fine. Feb 20, 2024 · Learn how to daisy chain multiple monitors using DisplayPort 1. 2 Multi-Stream Transport (MST). For daisy chain connections using DisplayPort, all your devices must support DisplayPort 1. それに対して、「1つのDisplayPortで1つのディスプレイを描画する」という、パソコン使用者からすると「ごく当たり前じゃねーか！. * Turn the MacBook on. Hi all, I recently purchased 2x Dell U2723QE (4k 27") monitors for my WFH setup with my 16" MBP. reduces reflection and eye fatigue. 47 cm (27-inch) viewable area display (measured diagonally). Neither of those monitors have the required DP out port to facilitate a MST DP daisy chain. Unfortunately, you cannot daisy chain the Dell U2720Q to the U2723QE using a USB-C (CC) cable, as the U2720Q does not have a USB-C output port that supports DisplayPort output. Apr 1, 2022 · This is also shown in the "Dell monitor, Apple FAQ" in that DDM for macOS does not list any of the P series monitors. 8-inch) active area display (Measured diagonally) 1920 x 1080 resolution, plus full-screen support for lower resolutions. Thanks! MacBook Dec 6, 2019 · I'm running a 2019 MacBook Pro, going out TB3 to an OWT TB3 Hub, then out its mDP OUT, into mDP IN on P2715Q, then daisy chaining via DP OUT to DP IN on Monitor 2. The "other way" that works is to use a supported configuration. first. mpdeboer08. Reply More replies. 2 可通过 DisplayPort 连接器增加连接和驱动多台显示设备。. 2 daisy chainable MST monitors. Jul 15, 2023 · I have a 32" Dell U3223QE monitor that contains a USB hub as well. #1 U2415 DP out --> #2 U2415 DP in. 1 Feb 17, 2022 · Both of these are connected to my WD19TB. The universal docking solution enables multiple displays, audio, ethernet and other USB peripherals to be connected to coomputers through USB. MST is enabled on both monitors and I can see on the monitor's Display Info that Jul 4, 2022 · File Format: CPG BIOS Executable for Windows/DOS. If your dock supports displaylink and displayport alt mode you can run 3 displays off a single usb-c on your mac. It has 1x Thunderbolt in, 1xDisplay port in, and 1x Display port Out. Note: When creating a VLT domain on a switch, Dell Networking OS9 automatically creates a VLT system MAC address used for the internal system operation. But I'm not sure if the setup will work like I imagine it, so here are two questions: - Is it possible to daisy chain from a single Thunderbolt 3/USB Type-C to two P2421DC monitors Sep 6, 2021 · I have a Dell U2722DE monitor connected to my MacBook Pro 16" (current model) with AMD Radeon Pro 5500M 4 GB graphics card. Getting Started with Dell SmartFabric OS10. color settings, response time, multi-monitor sync, MST on/off, etc. The third is at the end of the chain - it's an HP P24 G4. * Disconnect every cable (including the power cable) from the monitor. 使用菊链显示器或 MST 技术可扩展显示器配置数量,最多可显示四台显示器,但应符合显卡的性能和显示器的分辨率。. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment. 2, a monitor with 120hz at 4k works perfectly. 4k/60Hz. 4 --> DP1. 2 > Enable. Right-click on the desktop and click Screen Resolution. There is some confusion here. Set up per instructions for "Connecting the Monitor for USB-C Multi-Stream Transport (MST) Function" on page 42 of User's Guide. I am using it as an external display for my MacB May 29, 2020 · The "source" in your setup to the #1 U2415 is HDMI which breaks the MST DP daisy chain. My dual monitor setup is monitor 1 (27" 2560x1440@144hz ) and monitor 2 (27" 3840x2160@60hz ), both from LG. console (conf-mstp) # msti 1 vlan 100. Feb 21, 2021 · Getting Started with your Dell Monitor Dell U2419HC Setup, Specifications and Service Manual Dell Drivers & Downloads Warranty & Support Services Frequently asked questions. The monitor and hub work great with my work Macbook Pro (2023 16"). Steps:Step 1: Pick Master & Slave MonitorStep 2: Set them up with Mar 13, 2017 · I have a MacBook Pro 15" (late 2013) and consider buying the UP3216Q. The first monitor must support enabling or turning on DP 1. Nov 9, 2022 · When you use your MacBook with a USB-C MST mobile dock, you can only display dual screens in Mirror mode, with the two displays sharing the same landscape or portrait perspective. Here is a current (as of May 2024) list of daisy-chainable DisplayPort LCD monitors: Easy setup. Dell SmartFabric OS10 User Guide Release 10. The Dell UltraSharp U2417H monitor has an active matrix, thinfilm transistor (TFT), liquid crystal display (LCD), and LED backlight. Summary: Learn how to daisy chain multiple monitors using DisplayPort 1. Daisy Chain = Connecting a second monitor to the first monitor via the usage of the first monitors DP out port and the second monitors DP in port or mDP in port. I refered to the instruction from Dell for using an Apple USB-C (Thunderbolt) host due to lack of MST (Multi Stream Transport) under macOS. 2) at 1920x1080@60Hz (or 2560x1440@60Hz), the U4021QW (connected to the DP out port on the U2713H) is only able to Vibrant hues, sharp contrast. 2560 x 1440 resolution, plus full-screen support for lower resolutions. Apr 10, 2021 · To create multiple spanning tree instances, use the following command. Hello everybody, I am looking into buying two P2421DC because of the USB Type-C connector and the daisy chain feature. You can then choose how you want your desktop screen to appear and customize the display settings such as display style, screen resolution, color depth, and more. Feb 23, 2023 · 1. (For example: The mouse, keyboard, stereo Feb 24, 2023 · MST Daisy Chaining Two Monitors Only Allows for Mirroring, No Extension. Step 3: Choose which driver updates to install. The first device must be a genuine ThunderBolt device, either a display or a dock, and it must use High-speed thunderBolt cables. But the understanding there is that the PC is Windows. 3 4. If you are just using a USB cable, it will be running in DP Alt mode. Dell SmartFabric OS10 zero-touch deployment. The one PC will be connected via DP while the mac will be connected via type-C. the trick to get dual monitors extended using the macbook pro with the intel chip is by 1 monitor using direct display port and using a displayport to usbc adapter and connecting it to the back of the dell dock tb port. That monitor in turn is connected to another DELL U2722DE with a DP cable. Typically, the Mac can support up to two monitors using a Daisy-Chain setup (one monitor directly connected to the Mac and another monitor connected to the first monitor). Sep 14, 2021 · Summary: Learn how to setup and use Dell P2722HE monitor. Advanced CLI tasks. The U2720Q only has a USB-C input port that supports DisplayPort input, which means that you can only connect a device with a USB-C output Oct 3, 2022 · Dell monitor DP in, MacBook Pro, USB Type-C to DP no or lost signal. 1 Gen2) HDMI 2. The U2720Q does not have a DP out port. It is also supported on Google’s Chrome OS, but it is not supported by Mac OS. Notes, cautions, and warnings. 0 to HDMI Splitter Extended Display Dual Monitors, USB 3. 0, HDMI, 4k 60Hz DisplayPort, 1000M Ethernet, and a 3. * Press the monitor power button in for 8 seconds. Currently, I own a U2419H monitor. About this guide. For help with video or display issues such as: no video or no display, blank or black screen, flickering, resolution or color issues, horizontal or vertical lines, etc The monitor features include: ∞ U2715H: 68. ) viewable area (measured diagonally). The "source" in your setup to the #1 U2415 is HDMI which breaks the MST DP daisy chain. Easy setup. 5. 44 cm (25 in. 1, monitor may get No Video condition. The monitor features include: P2715Q: 68. Apr 1, 2024 · USB 3. 4 to 2nd U2419H. vaksai. In the Display settings, the arrangement only shows my laptop screen and one external monitor, so it doesn't see them as two monitors. I have a Mac Mini M2 Pro running Ventura 13. Jun 24, 2020 · There are two methods for dual display. 00. I tried connecting the monitors in the following fashion. Wide viewing angle to allow viewing from a sitting Summary: Learn how to daisy chain multiple monitors using DisplayPort 1. For example, if you plug in a thunderbolt to DisplayPort adapter that supports DisplayPort 1. The U2722DE monitor is designed with Dell Power Button Sync (DPBS) feature to allow you to control PC system power state from the monitor power button. Repeat step 3 for any subsequent monitors. Dec 12, 2020 · MST is a technology for sending two DisplayPort streams, down a single physical cable. Activating MST via the monitor menu or plugging into the DisplayPort output prevents a U2421E from recognizing USB-C or DisplayPort inputs until a factory reset is performed. Dell Thunderbolt Dock (WD19TB/WD19TBS,WD22TB4) and Apple USB-C Hosts. * Reconnect the power cable to the monitor. 0-A/C to Dual HDMI Adapter 4K@30Hz+1080p@60Hz Compatible MacBook/MacBook Pro Air Dell (MST Support MacOS/Windows) Visit the KOZYC Store 4. April 15th, 2022 04:00. Download and install the latest drivers, firmware and software. HP e230d (docking monitor) and dell d6000 (usb-c dock) support this mode, but you’re stuck at 1x4k@60+2x1080@60, or 2x4k@30+1x1080@60 (+others with tweaking, I run 2x2560x1440@30+1x3440x1440@50 and May 14, 2023 · I have a new Dell U2421E. With older video drivers, there is a chance of getting No Video when the monitor MST is set to "Off" or "Primary". Equipped with 100% sRGB, 100% REC. Click OK. Connect the computer to the DisplayPort In port on monitor 1. For help with specifications, setup, connecting an external monitor, troubleshooting common issues Apr 10, 2021 · If your system only supports DP version 1. 可将 Feb 22, 2019 · この機能のことを MST （マルチストリームトランスポート）と呼びます。. I understand it's possible to use the older monitor UP3214Q with my laptop via DP 1. If not, connect the Apple power adapter to the MacBook Pro M1 Max and retest. Make sure your monitor supports daisy chain also. Connect the provided power adapter to the Latitude 5320 and retest. Get drivers and downloads for your Dell Dell Thunderbolt Dock – WD22TB4. Feb 15, 2022 · This makes HDR unusable on the 32" version. Excellent choice for medium sized office environments. Nov 25, 2022 · Took delivery yesterday of two U2723QE. Jan 31, 2021 · U2421E, stops working on MacBook Pro, partially solved. Macbook Pro type-c TB <--> Monitor 1 Thunderbolt In with MST ON, DisplayPort Out <--> Monitor 2, DisplayPort IN, MST OFF. It’s purely a software limitation, there’s Ensure that the DisplayPort cables support Multi-Stream Transport. Drivers & Downloads. You also need to make sure your MacBook port is the thunderbolt Lightning usb-c port not the regular usbc port. Each monitor will need to connect to the MacBook. The Dell U2520D/U2520DR monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. Feb 17, 2022 · Dell WD19TB with MacBook Pro 14 M1 Pro. Step 2: Run the detect drivers scan to see available updates. It has two possible uses, only one of which Apple supports: Daisy chain a second display (i. The P2423DW User's Guide never mentions thunderbolt. Documentation. . Oct 26, 2023 · Dell Universal Dock D6000S works with DisplayLink technology that enables docking features over USB. Associate the VLTi LAG to the VLT domain. Get drivers and downloads for your Dell Dell Dock WD15. 47 cm (23. But I want to have one monitor normal and the other at 90 degrees. Disable the DisplayPort 1. Windows 11, Windows 10, or Windows 8 or For Windows 8 or Windows 8. File Size: 14. So a DP/MST daisy chain is not possible. To take full advantage of MSTP, create multiple MSTIs and map VLANs to them. Feb 12, 2024 · French to English translation of response support dell: "Configuring multiple monitors in a daisy chain. Get drivers and downloads for your Dell Dell Dock WD19. 2. That limits MacBooks to a single external display when outputting from a single port when using DisplayPort, though Thunderbolt does open up the option of multiple displays. I have a windows MST based dock, and macs could easily support this by providing software support as the hardware supports it. These systems have Intel HD Graphics 4000 and do not support Multi-Steam Technology (MST) also known as "Daisy-Chaining" allowing two or more DisplayPort capable displays connected in series. 2560 x 1440 (16:9) resolution, plus full-screen support for lower resolutions. If you don't have a display with a USB-C input, use a USB-C to DP cable or USB-C to HDMI cable. And this is not solved for me after a reboot on the Mac and reset of the monitor. 3 out of 5 stars 8 ratings Apr 1, 2022 · This is also shown in the "Dell monitor, Apple FAQ" in that DDM for macOS does not list any of the P series monitors. The configuration is currently MacBook Pro > Dell U2417H > U2417H > HP P24 G4. 0. Connect the DisplayPort Out on monitor 1 to DisplayPort In on monitor 2. Article Content Troubleshooting. The Dell P2715Q/P2415Q flat panel monitor has an active matrix, thin-film transistor (TFT), liquid crystal display (LCD), and light emitting diode (LED) backlight. Monitors are used with exact same setup in the OSD and colour profiles are installed/applied in OS. Force10(conf-vlt-domain)# peer-link port-channel 100. 1 only, select the Desktop tile to switch to classic desktop. Dec 2, 2022 · The Troubleshooting section of this Dell knowledge-base article provides information about troubleshooting common issues with the Dell P2723DE monitor. Apple support for external displays is absolutely terrible. 2 and then we plug in the secon Reduce harmful blue light with this 27-inch USB-C FHD Hub monitor that offers a wide viewing angle and ComfortView Plus technology. Overview. Source TB3/USB-Type C, DP, or mDP --> #1 U2415 DP in. If you want 3 external monitors + open laptop screen you need a second thunderbolt cable. 2 and MST. First we enable DisplayPort 1. Here's an example of how a MacBook display using multiple monitors would appear using the Kensington UH1460P Mobile Dock: Clever solutions from Kensington for MacBook MST(Multi-Stream Transport) DisplayPort 1. May 28, 2021 · Early 2011 to mid 2013 Mac systems use first-generation Thunderbolt, which supports DisplayPort 1. 5 cm (27 inch) viewable area display (measured diagonally). You are basically changing the monitor’s Display Port modes from DP 1. 2 or higher and Multi-Stream Transport (MST). Typically, the Mac can support up to two monitors in a daisy chain configuration (one monitor directly connected to the Mac and the second monitor connected to the first). Step 1: Identify your product above. Nov 20, 2017 · Daisy Chaining explained. Jun 23, 2023 · Jay goes through the 5 step process to set-up daisy chaining 2x UltraSharp U2723QE Monitors. Supported laptops connected to the Dell WD19TB or WD19TBS dock give you access to all your peripherals without having to plug each device into the laptop. I'm hoping someone can provide the ideal settings for using Dell monitors with MacOS, i. 1 つの DisplayPort コネクターを通して複数のディスプレイ装置に対処し、動作させる能力が追加されています。. But for whatever reason, despite years of people complaining about this on Apple’s forums, here, and elsewhere on the Internet, Apple has not implemented support for DisplayPort 2023 List of DisplayPort 1. This setup only mirrors Monitor 1 display on Monitor 2. Also you cannot use the #1 U2415 HDMI in a MST DP daisy chain. The section has troubleshooting steps on how to resolve power issues, video issues, color or clarity issues, distortion issues, horizontal or vertical lines, brightness issues or pixel issues Dell P2715Q is still the best 4K monitor on the market, it has the best quality for an affordable price tag. exe. Both of these are connected to my WD19TB. NOTE: DPBS only supports the port with icon. U2720Q. 2/MST in its OSD (On Screen Display) Menu and must have the DP out port. I have a dell wd19 dock station and 1 can only get 1 external monitor on extend mode. 5 mm audio jack. •. Windows docks use one called MST, while Mac specific docks has something else. Get drivers and downloads for your Dell Dell P2422HE. In order for dual monitors to work over DP Alt mode, a computer needs to support "MST" (Multi-stream transport) which for whatever reason, Apple refuse to support (Which is crazy, as even our dirt cheap Dell Chromebooks do!) The Dell U2520D/U2520DR monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. This feature is compatible with Dell OptiPlex 7090/3090 Ultra platform, and is only supported over USB-C interface. If you have any feedback regarding its quality, please let us know using the form at the bottom of this page. CLI Basics. WD19DCS works only with Dell Precision 7X40/50/60/70 series. Page 42 does show the daisy chain starting from PC USB-C. Vibrant hues, sharp contrast. Wide viewing angle to allow viewing from a sitting . If you use a thunderbolt to HDMI 2. console (conf) # protocol spanning-tree mstp. /#IWork4Dell. May 3, 2022 · They are Dell U2417H's with MST enabled and currently daisy-chained using a USB-C > DisplayPort cable from one of the ports on my MacBook. IPS Black panel technology: Enjoy deeper blacks with the world's first 49-inch DQHD monitor with IPS Black panel technology that delivers exceptional contrast (2000:1) across a wide viewing angle. May 29, 2020 · HDMI out to HDMI In on U2415 #1. Jul 28, 2020 · I am looking far and wide to get the MST with DisplayPort to work with my two Dell U2419H monitors (very nice). 2 には、DisplayPort のマイクロパケットアーキテクチャを活用することで、. Download. Apr 20, 2020 · Hi I am trying to have MST with my MacBook and two U2520D displays I have a Thunderbolt 2 cable connected from my Mac to Thunderbolt 2 female to Thunderbolt 3 male adapter from Apple going into t NOTE: On some older Dell monitors, enable MST feature to set up the monitor in a daisy chain. jb fx oj aw nb jj zb lo sx rk