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external usbc monitor (dell s2718d) not working

Q: external usbc monitor (dell s2718d) not working

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i purchased the lenovo yoga c930 and i tried connecting the laptop with usbc cord to the monitors usbc to usbc cord and its not working (its supposed to charge and display with 1 usbc cord). what can be wrong? my lenovo should be all updated (bios/drivers). it does work when i do usbc to hdmi but it doesnt work when i do usbc to usbc straight to monitor(which is a usbc monitor that allows 1 plug charging and display).

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i purchased the lenovo yoga c930 and i tried connecting the laptop with usbc cord to the monitors usbc to usbc cord and its not working (its supposed to charge and display with 1 usbc cord). what can be wrong? my lenovo should be all updated (bios/drivers). it does work when i do usbc to hdmi but it doesnt work when i do usbc to usbc straight to monitor(which is a usbc monitor that allows 1 plug charging and display).

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I have a Yoga 900 and I just got a Dell S2718D external monitor.  The monitor has USB C and HDMI video ins, and I can connect from the USB C port on the Yoga with an HDMI adapter, but the monitor isn't detected when going straight to USB C.  I'm at my wit's end on this one, I can't find a solution.  Please help!

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Hi, I am a Field Services Technician for my company and I am seeing an issue with the 380s and their docks where when an external monitor is used, that monitor is often fuzzy/hazy. It's still usable but it is hard on the eyes and not pleasant to look at. I have tried everything. I have tried updating to the latest video drivers, I have tried changing monitors, cables, and docks. I have tried setting the display to the external monitor only and having the user log in and out (made it worse) and then I've also tried this method with the laptop sat as the only display (made it better but still degraded). I have tried display cables, VGA cables, and display to DVI cables. Nothing seems to change this.  If I had to guess I'd say it's some sort of scaling issue between the laptop native resolution and the monitor's native resolution because the laptop display looks pristine but I have seen it to where the external monitor looks pristine and the laptop is the issue. What is causing this and how do I make it stop?  I'm at a loss and really need this issue to be resolved. 

A:Yoga 380 - USBC Dock - External Monitor is hazy/fuzzy, specifically office applications.

Hello and welcome,
I'm aware of Yogas X380 adn L380, but no Yoga Book 380.  You've posted in the Yoga Book (Windows) forum.  Please confirm your machine model so we can move this thread, or leave here as appropriate.

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Dear all,
Wonder if you can help me solve a problem. I have just received an XPS13-9350 from the Outlet last week. It was certified refurbished.
I've tried to connect a VGA monitor to it via a USB-C to HDMI, then HDMI to VGA cable. The HDMI to VGA cable works perfectly on my Inspiron 15. The setup also works if I full power down the XPS13, attach USB-C to HDMI to VGA to monitor, and then boot up. The external monitor then works almost perfectly (with the exception of Netflix's video player which makes it flicker blue - Youtube and local video are completely fine).
What I cannot do is plug in this monitor whilst the XPS13 is on already - which is inconvenient as I move on and off desk a lot, and powering down the computer every time is unhelpful. Oddly, the monitor will also not be recognised if I simply Restart from Windows. I have to fully power down and plug everything in before switching the computer on again.
I have updated BIOS, video card and Thunderbolt drivers since and none of these has solved the problem. My system info is:
DELL XPS13-9350
Windows 10
Core i7-6560U, Intel Iris 540 graphics

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My Dell Latitude E6420 has black screen of death. Let me explain what happen. My friend bought a battery for his E6440 laptop and his laptop not starting (no display) he asked me to check on my laptop for that battery.
My laptop display gone after inserting his battery and changed to my battery still didn't worked. I connected external monitor display coming there (external monitor is showing primary). but laptop display not coming to make it secondary.
I did steps.
1. drained power 30-1-2. still didn't work
2. changed RAM slots with another still didn't work
3. tried D+ power, did not see anything.
this morning I observed If close display 70 to 80% I can see barely light on the screen window login in the angle. 
Is that means back light gone? What are solutions have now? Do I need to change display? give me suggestion.

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Hello experts,
I have connected 3 external monitors to my 9560 laptop via TB16 dock. 2 Dell 24" 4K monitors: 1) DP to DP and 2) miniDP to DP & 1 Dell 24" 1920-1080 via VGA-VGA connection. The 4K monitor with miniDP to DP constantly disconnects. What am i doing wrong here?
Thanks in advance,

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I have a Dell U2711 monitor. I have been using it with my Mac (bare with me!) for several years without a problem. I am looking at switching back (my current mac is showing some issues) and getting the New XPS 13. What I am now concerned about is whether my monitor will work at all. As it is an older monitor, I doubt it can do DisplayPort Alt Mode, let alone HDMI. Because of the issues with current Dell docks, I am looking at the Kensington SD4600P. Has anyone had any success using this monitor with any current dell laptop?

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I have a DA200 hub which is a genuine pain in that it ceases working at different times, causes BSOD etc.. Can someone recommend a know reliable hub with HDMI and USB..


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I am stuggling with my Yoga 920 and USBC adapter. I researched and got a good one (I believe), a HooToo HT-UC001S 100W, HDMI monitor/charger/usb and it was working perfectly.  Then after a windows update a week ago, it is now very unreliable. It will work 1 out of 20 times. Everything works reliably except the external monitor, the PC does not recognize it at all. I've been trying to decode drivers and settings to no avail. Spent hour+ on chat with Lenovo. I have also tried a second simple USBC-HDMI adpater that worked before on this PC and on others. Confounding everything is that it does work if I unplug and replug the adapter with just the right timing (I'm certain it is not a flakey connector because everything else works perfectly). I feel like if I knew what driver and how to roll back, things might return to operational status... but that might just be wishful thinking... Does anybody else have this problem?

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I have a Dell XPS 13 laptop running Windows 10. I have just purchased a Dell U2515H monitor which I am waiting for delivery for as we speak. I believe the monitor has quiet a few inputs however I am not 100% sure which lead to get to connect them both and which port I use on the Dell Laptop. Looking on the left hand side of my laptop there is a port with a lightning sign next to it, is that called Thunderbolt? and is that my monitor/display port? and what lead do I need? it looks like some sort of micro socket!

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Hello,I need an advice.
Dell Vostro 1510 (version nVidia) does not function LCD - very little light.External monitor works OK.LCD - brightness up and down works. Closing cover notebook to sleep - works OK.
Test another inverter and LCD.It's the same :(
Please, give me an advice.Thank You.

A:Dell Vostro 1510 LCD DIM - monitor external monitor works

If the other inverter/LCD is known to be compatible with the system and produces the same result, bad power circuit to the inverter - replace the mainboard.

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My old dell laptop L502x is a bit quirky and caused me to buy a desktop, however, i think it is still saveable. when i have it display to an external monitor via hdmi, it works 100% with no problems. however, when i use the monitor that is physically attached to the laptop, i will get a " A clock interrupt was not received on a secondary processor" BSOD. from what i've gathered over numerous crashes, i believe its a problem with the integrated graphics in the processor, since they are not used when outputting via hdmi. i could be wrong tho, any help is greatly appreciated.

A:Dell Laptop external monitor = OK, attached monitor = BSOD

Before posting a BSOD thread, please read the instructions here: Blue Screen of Death (BSOD) Posting Instructions

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Hi, all, I have a Dell XPS 15 laptop and recently bought a Asus MB169B external USB monitor.  When I plug the monitor in, the laptop monitor (not the external monitor) flickers about every half second.  If I unplug it, it stops.  I upgraded my video driver to no avail.
Is it simply a power supply issue (the external monitor  does not have a power cord)?  Anything I can do?  It does it even if I have the laptop plugged in and charging.  
*something interesting - I just discovered if I duplicate the display and not extend the flickering goes away...but that kind of defeats the point of a dual monitor for me.

A:dell xps 15 monitor flickering after connecting external usb monitor

What is the exact system model? 
Have you connected the external monitor to a dock or hub or directly to the system USB port?
Update the BIOS - http://dell.to/1n3X2po - enter the service tag and download the BIOS, update and restart the machine and check.
Reinstall the video drivers and chipset drivers for the system from the above link and check.
Also, please click my DELL-username and write me a private message with the service tag and your Name for case records.
Let us know if you have any other queries.

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i have a notebook lenovo y570 that has a intel 3000 and a nvidia gt 555m card. My external asus vg248 monitor used to work through hdmi, but now it doesnt. I test with another laptop and the monitor works through hdmi... i must have changed some setting in my lenovo. The monitor says no hdmi signal.

I think something is wrong here:

help please!!

A:Asus monitor not working as external monitor for notebook

See if this helps:

Extending the desktop to the attached monitor with Microsoft Windows Right-click the desktop, and then click Properties.
In the Display Properties dialog box, select the Settings tab.
Click the Display list and select your external monitor.
Note: For help identifying the monitors, click Identify.
Select Extend my Windows desktop onto this monitor, then click Apply or OK.

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I couldn't find the answer to this. Apologies if it is already posted somewhere

I have a Dell Precision 5510.
I have it hooked up to an external monitor using dual screen
The sound from a video on youtube (etc) works fine when the external monitor is unplugged, BUT NOT WHEN THE MONITOR IS PLUGGED IN. This confuses me.  Is there a solution?
Thank you.

A:5510: Audio from websites not working when external monitor is also hooked up. (But Skype sound still working)

Hello. What might be happening is after you connect to the external display, the audio switches to HDMI audio. To get the audio to emit from the laptop's speakers again, go to the Windows Sounds dialog and make Speakers the default playback device (right click). You might have to do this every time you connect an HDMI cable.

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Hello -
So I recently bought a Dell Inspiron 24-5459 All-In-One for personal use. However, when I work from home with my work laptop, I'd love to be able to use the AIO as a second monitor. Is this functionality possible using HDMI? Thanks in advance for the help!

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I have a XPS 15 (L502X), I wish to add a 24 inch external monitor to it. 
My requirements are Moderate Gaming,  Movies, Application Programming, and occasional reading. 
I did some googling and created this shortlist:

BenQ GW2470
BenQ RL2455HM
BenQ EW2440ZH
Dell S Series S2415H 

I have read all about ghosting effect, color leakage and slower response time while gaming. Not sure how to determine what is good. I am inclined towards BenQ GW2470 as it is new, cheap and also has good reviews.
I would like to know if any of these are good options, or if there are other options that are better. I am looking for products available in Indian market.

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We got two new Dell XPS 13 for users and there does not seem to be any video out ports like on previous models.  This runs Windows 10 Professional and has an internal screen resolution of 1920x1080.  Looks like there is 2 USB 3.0 super speed ports and possibly a (thunderbolt)??? port?
I've heard of USB-C so I'm not sure if this one port on the left side is that, or if its thunderbolt.  I googled thunderbolt to hdmi adapter and in all the images I find it always shows a mini display port on one end despite the descriptions saying thunderbolt.

So whats the cheapest way to get HDMI out on this laptop?

A:How do I connect an external monitor to a new Dell XPS 13?

The Thunderbolt( USB Type C port) on the Left Hand side deals with the video output on the system. You will need to purchase a USB Type C to HDMI adapter to display video.
The cable is available on the Dell website here

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One simple question:
Has anyone succesfully connected the Dell XPS 15 9950 to an external monitor that runs on 2560x1440 @144Hz?
I have asked Dell employees over chat in three different countries, they all say different things.
I would think that one could use the thunderbolt3 enabled usb-c port to do this by running a usb-c to displayport cable to the monitor.
I have searched the internet for a week and didnt find an conclusive answer. 
The usb-c to displayport cable exists (Plugable and Startech makes them) and both are capable of driving an external monitor @144hz, but it is unknown if Dell supports this. 
I would love to find out your experiences! If you have experience with other resolutions @144hz, or even @120hz, let me know as well! 
If it's not possible it's a dealbreaker for me.

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As the subject suggests, I have a Dell Precision M3800.  I have always used dual monitor with no issue.  
My previous screen was an old Samsung 23 Inch (don't know the model exactly) and connected via Mini DP to HDMI.  Worked a dream.
Manage to find a buyer and though - "Let me upgrade - get a Dell Monitor - Dell plays well with Dell".
So got the Dell E2416H Monitor - with a Min DP to DP cable - for the past month I have not been able to fix an issue where by the screen does not refresh itself when you type or a sql comand finishes processing - just looks like it's still process even though it completed minutes ago - but the screen did not refresh the basics of what a monitor should display.
This is such an irritating that I have even gone to the extent of buying a USB 3 docking station and running through DisplayLink - with joy.
Please let me know if someone has a solution that differs from my all my colleagues - their advice is to go buy a Samsung monitor.

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I bought an USB-C to HDMI adapter cable to connect my Dell XPS 9350 to an external monitor (Dell U2414H).
I connect my laptop with adapter via USB-C, the HDMI port of adapter with HDMI cable and the HDMI cable with the external monitor. After that, the external monitor detected the laptop but it displays error message like that "There are no signal from your computer. Please press any key to wake up it".
My laptop still running, I also changed mode to duplicate or external screen and update all drivers but nothing change.
I checked the Intel Graphic Setting, it also detected the external monitor.
Please see attached images for more information and help me to fix it.

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I have a Dell E207WFPc monitor that I am trying to calibrate using my Dell Inspiron 15-7548 with Windows 10. I am unable to get the colors adjusted correctly with either the monitor on screen settings or Microsoft's color management tool. Is there something that I am missing and/or advanced that I could try? The main issue is that it is difficult to read black text on white background. I am mainly using this monitor as an external at work and not for any gaming or image use. Please help! Thanks for your time.

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I have a 5 gen thinkpad X1 carbon ( Intel HD Graphics 620).  Thinking of getting the Dell UltraSharp 34 Curved Ultrawide Monitor - U3415W.   Any issues with compatibility with the graphics card? Will it work? Dell Monitor

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I recently cracked the lcd display on my dell inspiron
7500, I don t have the money to replace it yet so I tried to
connect an external monitor. after the external monitor was
hooked up I turned on the computer and the external monitor
gets blue lines in the middle and nothing else.
How do I succesfully connect an external monitor? please help.

A:external monitor dell inspiron 7500

If all you get on the monitor is the 2 lines I would think the the laptop is screwed. The only thing you can try is taking the laptop apart and unplugging the display panel and see if it the external monitor works then. I assume that the monitor works fine everwhere else. You can check out www.dell.com and see if theres any known issues with external monitors and your laptop aswell.

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Hi - I've just gotten my Inspiron 5000 i5(7th gen) with HD Graphics 620 displayad.  The laptop has a HDMI port and I wondered if I can connect it to an external monitor and have my display on both?  I've tried a HDMI to VGA connector but that only seems to allow either or - I thought it might be the adaptor but is it actually that the laptop doesn't support dual monitors?  And if it does - can anyone give me any pointers on what needs to be configured to allow the double display?



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My Dell Inspiron 3437 ( Core i5, 4th Gen) screen suddenly stopped work couple of days ago, now it just worked for external monitor. What I done for the issue ( I did all works by an external monitor)
1. Taking a Diagnostics for all hardware no problem.
2. Using function key but no help.
3. Flashing new bios ( A10), the computer display worked!  but the screen did not display again when I restarted the computer.
4. I tried re-flash bios, but the bios program won't let me to flash same bios version.
5. I tested the screen on another laptop, it worked perfect.
So I guessed the computer BIOS chip corrupt.
Anybody can help?

A:****** Dell inspiron 3437 only works external monitor********

If the system boots to Windows, it's not a BIOS problem.  Check the display settings - if they look correct, but there is no display image, you either have a bad display panel or a bad GPU (i.e., mainboard).  Hold the D key through powerup -- if you do see the built in display test (cycling solid color screens), the display is bad - meaning the mainboard is the problem.  If you don't see that, the display needs to be replaced.

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I connected external monitor via VGA, but it shows 'no signal' sign. Where could be a problem?!
External monitor is AOC I2275PWQU.

Thank you in advance.

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I have my screen broken but I want to install a new windows, is it possible get in to BIOS using this method? 

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I have a Dell Precision 7720 with Quadro P5000 GPU. I am thinking of getting a 4k HDR external monitor and want to make sure I can set up the P5000 correctly. I've set up the BIOS to have the P5000 control the output ports directly.
In reading Nvidia's site, I'm supposed to be able to access the P5000 color settings from the Nvidia Control Panel, but when I open Control Panel I only get access to 3D settings. Many settings in the full Control Panel are missing from the drop down tree. Do I need to get full Control Panel software somewhere? 

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what is the HDMI / VGA output resolution of DELL Vostro 3550, if we connect an External Monitor

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I got this laptop recently and ran into an issue when connecting to external displays, in all games I am unable to set my video settings to 60Hz when choosing to project my display to the external screen only. If I duplicate the screen then I have no issue, but I want to be able to close the laptop lid and have 60Hz as an option, otherwise everything shows up as 59Hz which causes stuttering and flickering. The weird thing is that in Windows my refresh rate shows up as 60Hz at 1920x1080 but when launching any game 59Hz is the highest I can go to when set to display as "second screen only" in Windows 10. Please let me know what I could to fix this, and if it is not clear let me know.

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Hi all,
I have a Dell Precision M6700 and I wanted to use a 2 external monitors and the built-in LCD.  I was able to do this on my Dell M4700, but have been unsuccessful with the M6700.  I can get the built-in and either external to work, or both externals to work, but not all 3.
Many thanks in advance,

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I have a Dell Inspiron 15 3542 with an i3-4005u and integrated graphics. The max resolution for the built-in screen is 1366 x 768, it has an HDMI-out port, and I was wondering if I could output video at 1920x1080 to an external monitor using the HDMI port.

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Hi Everyone,
every time I plug in an external monitor to the HDMI port it flickers, but flickers the screen goes black and then displays a screen. There is no pattern to how it flickers, eg, hitting the cable or typing on the keyboard.
This occurs whether using an adapter converting to Video cable or simple a HDMI Cable. I have now used multiple monitors to verify it's not a monitor issue.
Any ideas as to what to do?

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Hi all,I have very silly question but I hope that anyone can help me ^^I need to buy a new external monitor to my ( dell latitude e5420 ) laptop, this screen can be LG 24mp48hq-p OR LG 24MP58VQ-PAnyway, My question is, Is there any problem to connect my laptop with those external IPS LG monitors ?!!sorry for my bad English Thanks.

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I just recently purchased an adapter from Amazon HERE...

After going through the run around with customer support, my issue is still not solved.

I am trying to connect an external monitor through HDMI via the adapter linked above, but an unable to solve the issue.  My laptop recognizes the external monitor is plugged in, and is functioning as you would expect with an external monitor (i.e. two screens, dragging between two screens, etc...).  However, it seems as though the laptop is not sending any video output to the external monitor.  
I have updated all drivers and installers that were recommended to me by Dell customer support.  Additionally, I had changed a setting in the BIOS to disable some sort of USBC or Thunderbolt 3.0 security, as per recommendation in the comments of the linked (above) product.

Any suggestions?

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I am having occasional problems with my laptop's screen appearing on the external monitor after waking up from "sleep."  Here is my setup:  the T430s laptop is connected to Dell U2713HM monitor via cable attached to the mini Display Port and via USB port.  Dongle for the wireless keyboard and mouse is attached to USB port on monitor.  Usually, after laptop goes to sleep, moving the mouse or keyboard will result in the logon screen appearing on the external monitor.   However, intermittently, after the laptop goes to sleep, the external screen will remain dark after moving the mouse or striking a keyboard key.   If I open the laptop cover, the log on screen will appear.   Thus, the laptop will get a signal from the dongle via the USB cable.  However, monitor will remain dark.   I used to be able to get the external screen to display the desktop by removing and reinserting the mini display port plug into the port on the laptop.  However, over the past month this no longer works.   At this point, the only way to get the external monitor to display what appears on the laptop is to reboot, which is usually a pain as I often have 20-35 windows open at any one time.  Dell said the problem was with the laptop.   Lenovo said I needed a new motherboard and I have an on-site warranty that will expire in 24 days.   So, the tech that came to replace the motherboard thought problem was not with motherboard, but with the ... Read more

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Hi I recently installed windows 7 and now I can't get my monitor to work it is a Samsung SyncMasterT220 I have used it on this hp laptop on vista for a long time without any problems..

please help me


A:External monitor not working


probably a video driver. what video card?


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I want to view Netflix "view now" videos online with an external monitor. What's the easiest way to accomplish this?

Thanks in advance.

A:Adding a 22" Dell External Monitor to 15" Dell M70 Laptop

Get a 22" Dell monitor and connect it to the vga port on your laptop. There is an Fn + (some other key) that will enable the external monitor. You can press the Fn+(some other key) combination so that either the laptop display is used, the external display is used or have it set so both are used for the display. Typically the combination is the Fn key plus one of the F keys at the top of you keyboard.

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I am using miNI+MICRO hdmi to hdmi adapter to connect my S1 YOGA to my dell 2715q monitor , There is no signal coming from the laptop. The monitor works fine when connected to Mac book, so no issues with monitor. What is wrong with this laptop hDMI pin? Why lenovo has been so terribly bad in making laptops with all this issues? Reviewed others answers but does not finding anything helpful ... all answers are appreciated

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So one of our Dell Latitude 3540 laptops used to work fine with an external Dell monitor prior to upgrading to Windows 10.  After the upgrade it refuses to acknowledge that a monitor is connected.  Device manager shows the display adaptor using the Microsoft driver and displays the warning triangle. When the driver update is selected, it finds a driver and starts to download it, then fails with Code 43.  I have deleted the adaptor and tried updating the driver with the same problem.  I have downloaded Dells Video drivers for this laptop and tried installing them but this seems to have no effect.  I have searched the web and found many similar problems but no solutions.  Any help is appreciated as we need the second monitor working.

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Bought DELL XPS 15-9550 with intel Core i7, 16G RAM, 1TB SSD HD, with Nvidia-GeForce GTX 960M from Best Buy last November.
Connected to external monitor HP2311xi through the HDMI.
Everytime need to set up display as 2 display, HP as Main and laptop as extended. Then every 5 to 6 min, the system reverted back to single display by first blanking the screens.
Reset the display by clicking detect and the laptop screen come back alive, and then after 5 to 6 same thing happened
Talk to Geek Squad. Change the cable, update the Intel HD graphics drive, reinstall and uninstall. Still happening
Update BIOS to the latest available still not solve the issue
Even after letting it in single display mode, the blanking keep continue. It is very annoying and distracting while working.
Any one encounter the same issue.  Please share the resolution
Thank you

A:Dell XPS 15-9550 with External Monitor HP2311xi - keep getting blank screen on and off -

I am having the same issue with my XPS 15-9550 with Nvidia combined graphics connected to a Dell UP3216Q external monitor.
Typically when interacting with apps, i.e. scrolling in MS Edge browser, the external monitor blacks out for a few seconds. It is very intermittent, and tends to occur several times within a 30 second period then it will stop for a while. Acts like bad HDMI cable connection. I have the same issue with multiple cables, although it could be the receiving connector on either the laptop or the monitor.
Have changed drivers on both the Nvida and intel adapters with no change in behavior. Changed resolution, frame rate, etc.
The problem renders the system unusealbe and I will have to return both the laptop and display if not resolved soon.

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Dear Friends, Can anybody please help me with this weird thing?
My laptop: Dell Latitude D600.
After power failure the computer failed to boot. It did beep signaling error, but can't recall the sequence. What I saw is that any time I try to turn on, the boot starts, however the screen is black, but faint picture of the booting sequence can be discerned. Then an orange led on the right led bus turned on, and the computer shuts down itself.
I suspected that the inverter blew out, and purchased compatible one second hand. However, it is important to say that the computer boots and works just as always if external monitor is hooked behind. The monitor can be turned off, and the laptop will still go up without problem. However, if the external monitor cable or power cable are unplugged, the same kind of failure to boot ensues. Also, if the external monitor is hooked and the laptop had been booted, even after any time, once I unplug the monitor cable or its power cable, the orange led turns on, the computer turns off.
When I received the second hand inverter I installed it, although it isn?t identical to the original one. After installation the monitor came back to life, with light and picture, but either during boot, or short after that, the orange led turns on and the computer shuts down. I tried to change BIOS settings, and several times I could make my computer to boot for long period of times, but during boot is always show, for short time, the orange led. Also, new... Read more

A:Dell Latitude D600 won't boot unless external monitor hooked

Sounds like the motherboard has been damaged in a subtle way and it will have to be replaced. You have two problems. Usually when an external monitor only works normally it indicates the the LCD panel or inverter is bad. You have had some success changing the inverter, but the laptop shouldn't shut down on its own

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When I connect my Dell XPS 13 9350 laptop with QHD display to an external monitor through the DA200 USB-C to HDMI connector the external monitors flicker constantly (laptop is fine-no flickering). Sometimes it works for like an hour then starts to flicker or longer so its not consistent. Below are the troubleshooting steps Dell has walked me through (including sending me a new DA200 part) to no avail:
- Dell has sent me a new DA200 USB C to HDMI part
- They have upgraded the Thunderbolt drivers and all other relevant drivers to latest ones (as of June 15 2016)
- I have tried on different monitors (5-6) and tried different HDMI cables.
Dell doesnt seem to know what to do now. THey have refunded my DA200 part purchase and told me to buy a separate HDMI to USB-C cable to test. If that fails it seems they will replace the motherboard. They say it could be an issue with the external monitors not being compatible with QHD, but this is not documented anywhere (they admit) and I havent heard anyone else having this problem on the internet and surprised every single person using this setup has QHD external monitors. This is an unworkable situation for me as I work in PC labs all day connected to external monitors.
Any advice? 

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