DisplayPort is a digital audio/video interface used primarily for attaching external monitors to computers, though it can also be used to transmit audio, USB, and other forms of data.

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Windows get moved to the primary monitor after waking from standby with mixed DisplayPort and DVI-D dual-monitor setup

Problem Description I am using the following setup: nVidia GeForce GTX 680 Dell UP3214Q (Ultra-HD, 3840x2160, run in its native resolution, connected via DisplayPort 1.2, i.e. DisplayPort on GTX ...
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1answer
2k views

xrandr doesn’t detect display ports

I have a ThinkPad T510 laptop with Gentoo Linux installed on it and I can’t manage to get VGA and DisplayPort working. xrandr -q won’t show them, so I’m guessing, that there’s a problem with my kernel ...
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1answer
2k views

Need a KVM setup to support HDMI and DisplayPort input with DVI or HDMI output

Here is what I want to connect via KVM to have one monitor and keyboard/mouse: 1st Work laptop (HP EliteBook 8560P) with a DisplayPort and VGA video output - I bought a passive DisplayPort to HDMI ...
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1answer
98 views

Can I use a DisplayPort cable to connect from MacBook Pro's Thunderbolt port to a DisplayPort monitor and maintain 4K resolution 60Hz

My purpose is to connect a MacBook Pro to an HDMI/DisplayPort monitor and maintain 4K resolution with 60Hz. But since MacBooks still lack support for HDMI2 and Thunderbolt cabels are expensive, I ...
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1answer
1k views

Surface Pro 2 DisplayPort 1.2 since recent update

I'm using the Surface Pro 2 and two Dell U2414H Displays connected via DaisyChain (Displayport to first monitor and then from the first monitor to the second monitor). This worked a long time, but I ...
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1answer
437 views

Slow flicker when video output from DisplayPort to TV HDMI input

I connected my new laptop (HP EliteBook 8570w running Windows 8.1 Pro) to my 4-year-old Sony HD TV using a DisplayPort to HDMI cable. It almost works. I get a 1920x1080 display, crisp, stable, except ...
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1answer
345 views

Radeon HD 5770 on three monitors. 95% working

Alright, so initially I ran into the typical problems associated with this setup (only two screens worked at a time, passive adapter does nothing yadda yadda). My problem now is that only two screens ...
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1answer
543 views

How to write script/program to duplicate a monitor (to fix HDMI audio issues)

Cliff's notes: Question: Is there a way to write a script to clone a monitor to another monitor (rather than do so manually in Control Panel or ATI driver)? I would like something similar to How can ...
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1answer
773 views

Low-end triple monitor setup problem

I've just setup my triple monitor configuration here at work and am running into some snags with one of the monitors. The problem: Two of the monitors are identical, but one of these two (the one ...
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2k views

No DisplayPort output via DisplayPort→HDMI adapter from Nvidia card using Linux on Thinkpad W520

I have a Thinkpad W520 laptop with Nvidia Quadro 1000M graphics running Debian testing (“wheezy”) and Nvidia driver version 295.40-1. The graphics mode is set to discrete in the BIOS. I would like to ...
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36 views

3 displays, one GPU, passive DP, ubuntu

I have a Radeon HD6850 card that I was using with Ubuntu 14. I had 3 dell monitors connected to this card and they worked great at 1600x1200. I had bought a Displayport to DVI adapter to get it ...
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268 views

4K monitor showing 2560x1440 as max resolution

I recently purchased a 4k Monitor, to figure that HDMI can only display 4K at 30 hz, which isnt enough for gaming and it simply makes it less enjoyable with the laggy input. It worked at 4k resolution ...
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0answers
171 views

How to select video connector between laptop and external monitor?

I want to connect a Lenovo ThinkPad X1 Carbon laptop to a Dell 2408 WFP external monitor. The ThinkPad laptop has a 14.0" WQHD (2560x1440) onboard display. It has Mini-DP and HDMI ports, and via a ...
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0answers
465 views

DaisyChain Non-Apple monitors to Macbook Pro

I as hoping to daisychain some monitors to either my display port or my thunderbolt port for my early 2011 Macbook Pro (AMD Radeon HD 6490M). I don't want to buy the expensive Apple monitors but I'm ...
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573 views

Dell U2312HM (DP) + Intel HD 3000 = Flicker

I'm using a Dell U2312HM monitor with my Lenovo X220 (Intel HD 3000 graphics card) via DisplayPort at work. Sadly, there is an issue with this combination: The Dell flickers once in a while. It's only ...
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30 views

Select DisplayPort for audio output

I can't get my head around a solution to output sound via DisplayPort to my monitor with integrated speakers. I have a MSI z87i gaming ac mainboard with no additional graphics or sound cards. My ...
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44 views

Second screen goes black on certain website (Firefox/Chrome on Windows 8.1 on MacBook Air)

Whenever I go to http://htw-berlin.de (the only URL with this issue so far) with Firefox 38 or Chrome Canary 45, the entire screen goes black until I close the tab. But only if the window is larger ...
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186 views

Make Intel HD Graphics 3000 use two external displays

I have a quite old work laptop but need it to display picture on two external monitors. It has classic VGA output as well as DisplayPort output. The graphics card is Intel HD Graphics 3000. I use ...
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285 views

Second monitor goes black after machine reboot

We have some 4th generation Intel NUC machines that we've placed an SSD inside of and attached two of these planar TVs. Each machine is running Windows 8.1. The problem we're running into is that ...
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457 views

WHY: Mini Displayport to Displayport adapter connected to Alienware m17 laptop for dual monitor not working?

I just bought this: accellcables.com/K088B-003B.html and am trying to connect my ASUS 27" (2560x1440) monitor up to my laptop through it's mini displayport. After wrestling through possible solutions ...
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38 views

how can I smooth pixels on a DP monitor?

I've got 2 monitors, same model (LP2361). But they connect via different cables because of what ports I have on my video card. The monitor that connects via display port has very chunky text. I took a ...
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151 views

Can Matrox TripleHead2Go support dual-mode DisplayPort?

I have an Alienware M18x r2 laptop, and am trying to hook up 3 external monitors to it in a non-linear fashion. I've discovered a product called Matrox TripleHead2Go which should (hopefully?) let me ...
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44 views
+50

Monitors not turning on with computer

I have 3 monitors connected through displayport cords and they do not turn on when my PC powers up and only turn on after I hit the PC's reset button. Here are some details: Graphics card has 3 ...
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29 views

DisplayPort MST and HDMI adapter

I have a Dell u2715h monitor which has both a DisplayPorts in and a DisplayPort out. It claims to support DisplayPort 1.2 and MST (Multi-Stream Transport). I do not have a second DisplayPort ...
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29 views

Macbook Pro and Acer external monitor text rendering

I just purchased this Acer B276HUL 27 inch IPS monitor from amazon and connected it to my Macbook Pro (late 2013 with retina display) with a thunderbolt to display port cable. The resolution of the ...
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13 views

How to connect Dell Vostro with HDMI to Matrox TripleHead2Go with DisplayPort?

I like to connect my Dell Vostro 3700 with HDMI output to the Matrox TripleHead2Go Digital SE with DisplayPort. Does somebody know if an active HDMI to DisplayPort converter works with the Matrox and ...
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61 views

Does MacBook Air 11" (Early 2015) Broadwell support DisplayPort MST?

Does MacBook Air (11-inch, Early 2015), powered by Broadwell with Intel HD Graphics 6000, and Thunderbolt 2 port (up to 20 Gbps), support DisplayPort 1.2 Multi-Stream Transport? ...
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72 views

DisplayPort monitor keeps “disconnecting”, but is still detected

Currently I have 3 monitors on an Sapphire R9 280x Overclocked GPU. One is connected through DVI, one through VGA, and one through an active Display port adapter to DVI. I've had this setup for a week ...
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162 views

HP EliteBook Folio 9470m Displayport

I have an issue with a HP EliteBook Folio 9470m, when the laptop boots out of the docking station and I then connect the laptop to the docking station with an external monitor connected to the docking ...
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151 views

ASUS ROG Swift PG278Q Stuck at 24hz (DisplayPort connection)

So, as the title states, I'm having an issue with my new monitor. It just came yesterday. Last night, it worked beautifully. No issues. It was flawless. When I booted up my computer today after ...
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171 views

Howto enable GPU-scaling with nVidia GTX 680 and UltraHD-DisplayPort-1.2-monitor?

I am running a Dell UltraHD-monitor in 3840x2160 at 60 Hz (DisplayPort 1.2). This monitor doesn’t support upscaling when running in DP 1.2 mode. nVidia's latest drivers seem to prevent GPU scaling ...
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134 views

Is it possible to force 2560x1440 over HDMI on mid 2010 Macbook Pro?

I am trying to use my mid 2010 macbook pro over one of the two available HDMI ports on the monitor (displayport taken by primary pc). Whenever I connect with the equipment below I can only select ...
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0answers
188 views

Does DisplayPort cables only one-way?

I saw this DELOCK 82438 Mini DisplayPort - Displayport cable where the image shows one end is an input, while the other is an output. They also say in the description that this is a Mini DisplayPort ...
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35 views

DisplayPort on AMD 780G based Mainboard

I just bought a Dell U2415 monitor and connected it to my ASUS M3A78-VM Mainboard via the DisplayPort to mini DP cable. The BIOS shows correctly on the monitor, but as soon as it switches graphics ...
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158 views

displayport + 3.5mm audio to HDMI?

I have a Lenovo W500 and apparently, the graphics card (ati radeon) doesn't support audio output through the display port. But, connecting separately from the headphones to the RCA inputs in the TV ...
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95 views

Troubles with connected second monitor to Nvidia FX 580

I'm running Win7 Pro, 1st monitor connected via HDMI is a Samsung S24D300 (main monitor) no problems. 2nd monitor is an LG W2261VP connected to one of the DisplayPort with a DisplayPort to DVI cable. ...
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152 views

How do I route audio to my HDMI port instead of the display port

My Dell Studio 1747 notebook has an ATI radeon HD 4650 graphic card. The card has both HDMI as well as Display port output. However, the audio routes to the Display port instead of the HDMI. Since ...
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108 views

DisplayPort monitor with USB hub, switch to another machine with all USBs?

So, I'd really like to just be able to sit down at my desk, with my gaming pc all connected up and working, plug my MacBook Air in to the DisplayPort and pick up all the USB devices. ...
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265 views

HD 5870 displayport low power no image on Dell UltraSharp U2414H 23.8

NOTE: I bought a cable for HDMI and now the resolution is at 1920x1020 I would prefer to at least understand how to fix the display port I have a windows 7 desktop with and AMD HD 5870 graphics card. ...
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0answers
49 views

Would USBs on non-Apple monitor with DisplayPort work?

Would the USB ports on a 3rd party monitor work on MacBook Pro with Thunderbolt? I have a MacBook Pro 13" from ~2012 (13", no retina, i7 model) that I'm still pretty happy with. Now I'm sick of ...
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0answers
108 views

Reconnect monitor with displayport

I have a Dell 2711 monitor which I connect using Displayport to either a laptop (Windows 8.1) or a desktop. I can't use any of the other connections, since only the Displayport supports the maximum ...
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0answers
29 views

10 bit Color Mode Corrupting Screen Capture

I am using a FirePro W5000 in 10 bit display mode with 2x Dell U3014 monitors on Windows 8.1. The output to the displays and color reproduction all work fine in all applications that support 10 bit ...
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335 views

AMD Radeon 7900 series: setting up 3 monitors

I have an AMD Radeon 7900 series, which should support up to 6 screens. I'm having problems getting my third one working. Im running windows 8, and have installed all the latest AMD drivers. My ...
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132 views

Send sleep/wake command via displayport to computer

Is it possible for windows or linux based system to check if displayport display has been turned off/on and react accordingly to sleep/wake/shutdown/start system?
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47 views

Origin of display connector numbers in XServer (e.g. HDMI1, HDMI2, DP1)

a custom mainboard has a DVI and a DisplayPort connector on the board. Currently, everything that is connected at DVI will be named "HDMI2" in XServer. I can see that by calling the "xrandr" tool (in ...
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728 views

Mini DisplayPort daisy-chaining

I haven't found any documentation saying it's not possible, but I've been trying to find if daisy-chaining Mini DisplayPort-to-DisplayPort with successive monitors connected using DisplayPort. So: ...
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433 views

Laptop freezes when I plug in a new monitor displayport cable

I have a Dell Studio 1749 with an ATI Mobility Radeon HD 5650 Graphics card. I've just purchased a Dell U2713HM Monitor. I need to connect them Displayport > Displayport in order to acheive the ...
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0answers
52 views

Connect laptop to second monitor - impossible?

There must be a really simple solution, so I feel a bit stupid having to ask: I want to get a Samsung Ativ 9 Plus which has a Micro-HDMI and some weird proprietary (or maybe not?) small VGA port. As ...
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0answers
799 views

Cannot extend desktop to 3 monitors

I have an annoying problem. I problem on my old notebook I had a HDMI and VGA port however I could only extend my desktop to one additional screen. I sold that notebook and purchased a new notebook ...
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730 views

Windows 7 flash monitor black?

I have a laptop connected to a monitor that uses Displayport. My monitor flashes black for a split second randomly while connected to Displayport but does not while connected via DVI out. I've ...