An external display is a display device, such as a TV, projector, or extra monitor, that is not the primary display for the computer. Use this tag if your question is specific to the external display, rather than about multiple monitors in general.

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Use mid 2011 or 2012 iMac as 2nd display for Dell XPS15 (USB-C Thunderbolt 3)

Seems there is a lot of misinformation out there. Simply want to use my mid 2012 iMac in TDM (Target Display Mode) with my Dell XPS 15 (USB-C-Thunderbolt 3). https://www.theguardian.com/technology/...
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1answer
6k views

Will windows 10 automatically detect my external tv/monitor?

I have a windows 8, now 8.1 hp laptop with a damaged screen. I wanted to know if I upgraded or did a clean install to windows 10, would it automatically recognize my external monitor/tv. When I had 8 ...
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2answers
5k views

HDMI connection from a Sony Vaio VGN-2950 to external display does not work (but VGA does)

I have a Sony Vaio VGN-2950 with a HDMI connection and a Samsung 24A350H external monitor with an HDMI input. If I connect the laptop to the Samsung via a VGA connection, it works fine. However, it ...
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1answer
25 views

Windows Keyboard Shortcut for switching multiple Screens

I have three monitors and due to the video card restrictions, I can only view two monitors at a time. Everytime I want to switch between the monitors, I would have to open the "Display settings", ...
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2answers
59 views

Why DisplayPort, HDMI port etc. while USB can do the job? [closed]

I've been using HP EliteDisplay E232 connected to my hp notebook HP ZBook 15 G2 through DisplayPort for some time now. Both the monitor and the notebook has Full HD 1920X1080 resolution. I was so glad ...
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0answers
20 views

BIOS MAP for ASUS K75VJ-DH51-CA

I have a interesting problem that I won't be able to fix without some help. My Asus K75VJ (Exact model in title) Laptop has a broken screen. I cannot edit the BIOS because I reset it and now the ...
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1answer
6k views

Use external display from boot on Samsung laptop

I have a Samsung RV511 laptop, and recently my screen broke. I connected an external screen and it works fine, but only after Windows starts. I want to be able to use the external screen right from ...
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1answer
26 views

usb powered monitor with vga input?

i'm looking for a monitor that would be usb powered with a vga input, does this kind of monitor exist? this would be used for a server(freenas), so i need to be able to look at the boot/bios (this is ...
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0answers
12 views

Is there a device that can output the same image to 3 monitors at 1080p?

I want to use a Mac Mini to drive 3 1080p monitors with exactly the same image. Three large monitors will be used to display the same image to the public and I need 1 display to manage the Mac. As the ...
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3answers
3k views

MacBook Pro crashes occasionally on a dual monitor setup

I’m using a MacBook Pro 13" (mid 2010) running Mac OS X 10.7.5 (Lion). I just got a Viewsonic 24' monitor (2450wm-LED), and I connect it to my MacBook Pro using a miniport to VGA adapter (this one on ...
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0answers
10 views

Smart prevention of sleep/screensaver when connected to projector?

When I connect a laptop to a projector, I usually don't want it to go to sleep/screensaver mode while the projector is plugged in (I'm a teacher; my fellow teachers are in the same boat). I'm looking ...
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26 views

Can I use a PC with a monitor as a server for wireless display for Android phone?

The web is full of articles about how to connect [a device] to a WiDi-enabled TV set, and if the answer to my question is available somewhere on the net, it's thoroughly lost in these results. Is ...
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0answers
27 views

Adjust brightness of external monitor with only one button

At work, in addition to the company laptop, we are given an external monitor (AOC 2270W) to work with two screens via a HDMI connection (working on Windows 7). The problem is the brightness of the ...
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2answers
9k views

How can I regain the ability to output to an external monitor via HDMI on my Lenovo Yoga 2 Pro?

I've had a Yoga 2 Pro (running 64-bit Windows 8.1) for a few months. I usually have it hooked up to an external monitor via HDMI. I disconnect and reconnect it all the time. This machine has the ...
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0answers
33 views

Unstable display signal from Mac to External Monitor with a DP to D-Sub/VGA cable

This a problem I've been having on-and-off for the last two months or so. I have a brand new iMac16 replacing an older Mac. I had an external LG 20M35A Monitor connected via a DisplayPort to D-Sub/VGA ...
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1answer
18 views

Integrated graphics not giving out signals through any port

I have been trying to re-enable my integrated graphics card as my dedicated graphics has no HDMI port but when I connect HDMI or VGA to my integrated graphics port there is no display. I searched the ...
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0answers
9 views

Hyper-V disables external video in Windows 8.1 pro

I've been using my notebook for months to drive an external UHD monitor via HDMI as my primary display (set to Second Screen Only), works beautifully. But after I enable Hyper-V, it reverts back to ...
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1answer
34 views

Can an hdmi to vga adapter have a resolution limit?

I purchased an hdmi to vga adapter but when I connected the hdmi part to my laptop and the vga part to my monitor, laptop told me that the optimal resolution for that device was 1024x768 even though I ...
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1answer
711 views

External monitor flashes occassionally only while power cord is plugged-in

I have a Thinkpad laptop (E550 to be exact) with an i5 CPU and Intel HD 5500 GPU running with Win 7. Since two weeks, while an external monitor is connected (to the VGA port) AND the power cord is ...
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1answer
22 views

How can I stop my monitor turning itself off and on again every few seconds

I have two monitors connected to my windows laptop. Sometimes (particularly after resuming from a suspended state, but sometimes it just happens randomly too) the second monitor will go into a cycle ...
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1answer
48 views

Maintain window placement on monitors after reinserting to dock

I have a laptop that normally sits inside a docking station. Connected to the docking station are two monitors which are used as display devices (the laptop's own monitor is switched off as the ...
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2answers
31k views

What are the advantages of 10-bit monitors?

To support 10-bit color the following are needed: A monitor supporting it. A GPU supporting it (only AMD FirePro and NVIDIA Quadro support this?). Compatible software. Unless I am mistaken there are ...
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1answer
4k views

Switching between Video Adapters in a Dell Latitude E6530 laptop

I have a Win 7 Latitude E6530, which includes a discrete graphics card (nVidia MVS 5200M), normally connected via the Port Replicator to 2 external monitors (Dell U2410 + Dell 2001FP) both via DVI. ...
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2answers
40 views

DVI to HDMI cable - No Video Input

I've just bought a DVI to HDMI cable in order to connect my Philips 227E3 to my Asus X555L. When I connect them, and choose DVI as input for my screen, I get "No Video Input" message. What can be ...
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1answer
922 views

Using HDMI output from Dell M1530 with a dead screen

I've got a now fairly old Dell M1530 laptop (that has had various problems due to the well documented overheating issues) that has in the last week had its LCD panel die on me. It's not the inverter ...
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3answers
1k views

Dell Inspiron 1545 display inverter

I own a Dell Inspiron 1545 laptop. The screen is not working, but I get a picture with an external display. I am told that the problem is the inverter. What is it and is there a way to repair it?
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1answer
12k views

Dell Latitude E6420 does not detect Dell External monitor P221 2H

I have a Dell Latitude E6420 and recently got a Dell Monitor P221 2H. The issue is that the Laptop is not detecting the external monitor and Monitor is displaying "Entering Power save mode". I tried ...
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6answers
1k views

What applications can utilise the Logitech G15 LCD screen?

I am about to pick up a new computer today, complete with a Logitech G15 keyboard. I primarily play Team Fortress 2, though certainly not exclusively. I believe I can use Fraps to report on the ...
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0answers
684 views

Dell Inspiron mini laptop - access Bios blind?

I picked up a Dell laptop Inspiron 1018 mini at a school fund raising sale cheap. Screen is cracked so it only works on external screen which is OK, but here is the kicker... we also don't have ...
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79 views

How to connect laptop to monitor and duplicate display?

How do I connect my new Dell inspiron to my dell monitor? I have tried connecting a HDMI cable between both of them and there is no display?
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3answers
10k views

Laptop + 2 Displays Issue

I'd like to extend the display of my ASUS N53SV-SZ038V to two external monitors. The laptop has one HDMI output and one VGA output. I have each connected to an external monitor. The problem is that ...
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1answer
133 views

Linux, secondary display is goes black

I'm using Archlinux with Gnome 3.2 and the "nvidia" drivers. I'm using a 15" Apple MacBook Pro with an Apple Cinema Display attached as my secondary display. After about three minutes, the external ...
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0answers
56 views

Windows 10 external screen no longer detected

I have an HP elitebook laptop. I work with an external screen that is from iiyama. This set up has worked perfectly fine for the last month or so (since I upgraded to windows 10 from windows 7). ...
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1answer
564 views

How can I force the NVIDIA display to show up on the HDTV as default like I use to?

How can I force the Nvidia display to show up on the HDTV as default like I use to? Details: I have an Acer laptop with a broken screen. I removed the screen completely and set it to load up the ...
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0answers
26 views

Audio over displayport suddenly stopped working

I used to connect my Surface Pro 3 via DisplayPort to my LG display, playing the sound though the LG. Today when I tried to connect the Surface it didn't worked. I checked if somehow the default ...
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1answer
53 views

HDMI->VGA adapter prevents me getting sound from my laptop

My laptop only has HDMI out and the external monitors I have access to here (including a projector) are old VGA-only. I have a HDMI->VGA adapter but when I use this I lose any sound output from the ...
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1answer
130 views

How to run 2 external monitors on Dell n7520 laptop

I'm having the n7520 Dell Inspiron notebook, and i'm trying to connect 2 external monitors to it, meaning i want 3 functional monitors at all. i have bought VGA splitter and have 2 monitors connected ...
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0answers
30 views

External Monitor does not detect my laptop after removing my broken LCD

I have a Dell XPS 15 (L502X) with a dysfunctional screen so I removed it from my laptop thinking that I'll connect an external display. But now when I turn my laptop on it beeps 8 times (LCD ...
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1answer
3k views

Sudden “No Signal” in HDMI-DVI connection

Yesterday I have connected external display Asus VW192C to my laptop Dell XPS 14-L421X via HDMI-to-DVI-D cable. And it worked perfectly fine from start. The day after, Asus screen went blank showing "...
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1answer
4k views

Can I force my Thinkpad T520 with NVS4200m to output WQXGA on the displayport?

Edit - this is no longer an issue due to a series of driver updates. Sometime in August/September 2011 (I think, maybe even earlier) an NVidia driver update made it possible to run WQXGA resolution ...
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0answers
557 views

High resolution monitor (2560x1440) to NVIDIA 9700M with HDMI

I have an Acer Aspire-8930G laptop and I want to connect it to my 27" screen. The graphic card is NVIDIA 9700M, which supposedly supports up to two screens with 2560x1440 resolution. The laptop has ...
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2answers
8k views

PowerPoint Won't Put Display On Projector Screen

I have a course to present in half an hour. i'm using PowerPoint (2007, I think) The screen I want people to see is appearing on my notebook computer. The screen I want to see on my notebook is ...
2
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1answer
11k views

How can I get 3 monitors working with Intel onboard graphics and a Geforce 560 Ti?

I have an Asus GTX 560 Ti graphics card which has two DVI outputs and one mini-HDMI output. I have 3 monitors I want to connect up which all take DVI inputs. Two monitors work fine on DVI. I tried a ...
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2answers
9k views

Secondary monitor does not display native resolution

I have a laptop (Acer Aspire 8730G) which runs a GeForce 9300M GS. Its native resolution is 1680x945 pixels. Now, I connected my monitor to it (LG E2250V-PN) with VGA (laptop only has a VGA or HDMI ...
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3answers
7k views

Can I make Windows 7 and the Nvidia Control Panel “forget” external display resolutions?

I'm currently having a problem with my system where the full 2560x1440 resolution of my Dell U2711 monitor isn't well supported by my ASUS G73S laptop (it has an NVIDIA GeForce GTX440M CUDA with 1.5GB ...
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1answer
38 views

TV doesn't work as single monitor for PC

Hello i am running Debian Jessie with KDE and i am trying to use my Sony Bravia TV as a monitor but i have a very curious problem. The TV has a VGA cable which i connect to the computer via a DVI ...
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0answers
303 views

Use different display settings for the welcome / logon screen than my desktop? (Windows 7)

I vaguely recall back in the days of Windows XP that I could set up my display settings as "Administrator" and they would apply to the logon screen. However, once I log in my user settings could ...
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0answers
30 views

Red ghosting/blur on monitor

I have a BenQ GW2270H monitor, and have found that there is an odd, red blur that surrounds certain things on screen when they move quickly. Some black objects also blur. It happens to both my PC and ...
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4answers
3k views

Linux: How to run a script when an external monitor is connected?

How can I detect when an external monitor is connected in linux? I need to run various scripts to set up my workspace. Is there some clever way to kick off a script when the monitor state has ...
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3answers
821 views

Use 4k monitor @60hz with Nvidia GTX 850M

I bought a new Laptop - ASUS N750JK (see https://www.asus.com/de/Notebooks/N750JK/specifications/) with a Intel HD4600 and a Nvidia GTX 850M graphics card inside. I also bought a 4k Monitor (see http:/...