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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External display changing brightness based on what's shown

I'm using a Dell Inspiron laptop running Windows 7, with a Samsung SyncMaster P2250 connected via D-SUB as external display. The display seems to dynamically adjust it's brightness based on what's ...
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2answers
3k views

HDMI connection to external display does not work (but VGA does)

I have a Sony Vaio VGN-2950 with a HDMI connection and an external monitor: a Samsung 24A350H with a HDMI input. If I connect the laptop to the Samsung via a VGA connection, it works fine. However, ...
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1answer
4k 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
3k views

Keyboard shortcut to set screen resolution in windows 7

Using a windows 7 laptop when I switch off/disconnect & reconnect my external monitor, or after getting the laptop out of sleep mode sometimes the screen resolution is all wrong and if I go to ...
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0answers
27 views

Tv and Computer connection HDMI

Using A DVI to HDMI adapter on my GPU connected with an HDMI cable to my HDMI slot on my LG TV UN32E5000. My TV loses connection when my PC sleeps or I push Ctrl + Alt + Delete. TV has latest ...
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60 views

Blurry text on external monitor with High DPI Windows laptop

I have a Fujitsu u904 with 3200x1800 display and Windows 8.1. I had to scale my DPI to 200% to be able to read text on it. Of course I was expecting a lot better image scaling, since this is 2x ...
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3answers
126 views

One computer, switch between four monitors?

I don't have a powered standing desk - instead I have a fixed standing desk next to a regular desk. I currently have two monitors on the standing desk attached to the computer. I'd like to add another ...
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having 4 separate desktops on one display, each working by itself

I want my HDTV to act as it would be 4 separate desktops, so I can have 4 videos recorded at the same time on the same screen. Is there any possible solution to that?
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3answers
172 views

Second monitor not recognized after boot, connected to new laptop

I just bought new Asus laptop model N750JK. I've tried to connect it to my external monitor via HDMI port (HDMI->DVI adapter). The second monitor displays image on the screen when I start the PC and ...
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6answers
12k views

Two identical external monitors, one through HDMI another VGA. Text on VGA looks blurry

I've tried a lot of things but I can't seem to get it working correctly. Below is my setup. Laptop is a Dell Latitude E6535, which has Video chip/card NVidia NVS 5200M. I have two external AOC IPS ...
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1answer
27 views

External display set brightness with laptop

I have Dell U2415 connect to my laptop. On laptop I can manage brightnes with fn + arrow, but this work only on laptop. It show windows show But dell not react is there some application can do ...
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1answer
22 views

2 sets of mirrored monitors windows 7

I have a graphics card with 2 dvi outputs. I have 2 monitors and a hdmi switch that goes to a hdtv. I am trying to see if its possible to mirror each dvi output so that each dvi has 2 receiving ...
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2answers
2k views

Windows 7 does not recognize LG E2250 monitor when connected with RGB

I have a Lenovo Thinkpad T410 and an LG monitor E2250 (1080p, so should support 1920×1080). I try to connect the monitor using the RGB connector and use it as an external monitor. The problem is that ...
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0answers
34 views

No display to external monitor

Checked a bunch of related questions and don't see the same issue. My lenovo T430s recognizes my VGA to external monitor (Samsung SyncMaster920ew) but the monitor stays blank. The laptop adjust the ...
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0answers
63 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
29 views

How can you mirror a high-resoluton screen?

I just bought a 1440p 21:9 monitor that I had planned on using wirelessly with my laptop from across the living room. I tried using a Miracast dongle (a Microsoft Wireless Display Adapter) but it will ...
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2answers
2k 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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1answer
41 views

Determine if my laptop can handle certain resolution

I have a Dell Latitude E6510 and thinking of buying an external monitor with a resolution of 2560 x 1600. Is there any tool I can use to determine if my laptop will be able to use the full resolution ...
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3answers
8k views

Daisy-chainable DisplayPort Monitors

I am the proud new owner of a MacBook Pro with a mini-DisplayPort. My desk setup used to allow me to position the screen of my old MacBook beside an external monitor, essentially allowing dual-head. ...
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0answers
684 views

OS X Yosemite fonts jagged/blurry on external monitor

Anyone have any suggestions on possible fixes for jagged text on my external monitor hooked up to my rMBP? I am using an ASUS MX279H monitor. The text is pretty jagged everywhere. Safari, Messages, ...
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1answer
114 views

DELL latitude shows a blank screen unless connected to external monitor

I have a DELL latitude E7440. If I power it on as is, a blank screen is displayed. However if i connect to an external monitor, it works fine. Is this a driver issue?
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1answer
64 views

Hdmi to dvi oddness

I have a retina macbook pro (with two thunderbolt ports and one hdmi port). I just bought an hdmi to dvi adaptor but it doesn't work right when I plug it into my hdmi port: The monitor goes to sleep ...
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100 views

My external display is bad with mac book retina display

I have mac book pro retina display 15". I have BENQ monitor GW2450 My the display is not clear and font looks very bad like some white dots in all fonts. Loks like resolution is not right. In the ...
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26 views

Put macbook display screen to sleep but leave external monitor on?

Im connecting my macbook to my TV via the mini display port. If I put the laptop screen to sleep (via a hot corner) the TV screen also goes dark. How can I put the laptop screen to sleep but leave the ...
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61 views

Window Chrome on Task Bar, Desktop IE, scaling incorrectly on Windows 8.1 on SP2 with an extended desktop to an external display

I have a surface pro 2, and an external monitor attached via mini display port adapter. I have UNCHECKED the "let me choose one DPI for all screens", and everything is great except I have one fly in ...
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1answer
5k 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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1answer
496 views

Zotac NVida GT640 2GB Video Card Mini HDMI output

I cannot get my 42" Samsung TV to show my computer on the HDMI cable which has a mini HDMI cable hooked to the computer. It works fine if I use the DVI connections from the tv to the computer but I ...
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1answer
2k 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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3answers
3k views

Closing laptop lid and using external display causes mouse to move on it's own

I plugged my ASUS Taichi Laptop into an external monitor via the VGA Adapter that it comes with. It was working fine, but then I configured a power option so I could shut the lid without it going to ...
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0answers
169 views

Secondary (extended) monitor turns off when I remove power cable from my laptop

I have a 2 monitor setup. An extended monitor that connects to my Lenovo Thinkpad T530. When I removes power cable from my laptop to run it on battery, the secondary (extended) monitor turns off. Can ...
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2answers
787 views

Toshiba Satellite U500 - Totally Damaged LCD

I accidentally damaged my Toshiba Satellite U500 laptop which resulted in a totally unusable LCD. The LCD panel has some cracks on it, and I can only see black & white spots; the laptop frame ...
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3answers
1k views

Macbook pro crashes occasionally on dual monitor

I'm using a Macbook pro 13' mid 2010 running OS X Lion 10.7.5. I just got a Viewsonic 24' monitor (2450wm-LED), and I connect it to my mbp using a miniport to VGA adapter (this one on Amazon). However ...
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0answers
49 views

VGA output looks smudgy

I am using Windows 8.1 on a Lenovo G 580 with an Intel HD 4000 graphics chip. The external monitor I use is a HP Z24i and my problem is not only the max resolution that can not be reached (1920x1200, ...
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33 views

Close lid on macbook air without changing primary display to the external monitor

When I connect my laptop to a TV, I need to use the touch pad to control the mouse, so the lid needs to be open. So I drag the video player's window to the TV and then want to start the movie and ...
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6answers
742 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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1answer
298 views

Desktop background image appearing only when external monitor is on the 'right' of netbook

I am using Ubuntu 10.04 LTS. When I attach an external monitor the default is that the new monitor is placed to the right of the samsung n150 netbook I am using. This opens the desktop back ground on ...
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3answers
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Cannot enter BIOS due to broken screen

Lately my laptop (HP g42 247sb) screen is damaged, so I hook it up with an external monitor (LG something) and it works fine now. The only annoying thing is I cannot navigate the BIOS menu for some ...
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1answer
259 views

Mini-DisplayPort to HDMI Adapter Sound Stopped Working

I have cancelled cable and want to watch the NCAA tournament games on my TV tonight through my 2011 Macbook Pro where I can stream the game in a browser. I have a cheap Mini-DisplayPort to HDMI ...
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2answers
48 views

Can DisplayPort enhance resolution?

I'm a little new to the gaming laptop scene and I've been wondering: If I bought a laptop with a native resolution of 1920x1080 and hooked up a DisplayPort cable to an external monitor, would the ...
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4answers
23k views

Secondary monitor shuts off when laptop lid close

I have a new dell XPS laptop. My external Dell monitor attached to my laptop.Everything works fine if my laptop lid is open, but if I close the laptop lid, I lose the display on the monitor attached ...
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2answers
3k views

Prevent Windows from resizing all the apps on the desktop when switching monitors

Short version: When moving my laptop and sleeping between using different monitors, all my open windows are crammed into the upper left corner as if they tried to fit on the laptop internal screen ...
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0answers
23 views

Configure three screens backed by two graphic chips in a laptop under Linux

I'd like to connect two external monitors (one via HDMI, one via VGA) to my HP ProBook 4330s LW813EA laptop, while keeping the laptop screen on as well. The Intel HD 3000 graphics embedded in Core ...
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1answer
54 views

Using extern monitor with multitouch to control pc - which cabel to use? [closed]

I have NEC MultiSync V321 monitor to testing and I want connect it to my notebook. I have hdmi cabel and display is fine but I can't control it. So I am asking if somebody knows that I must do some ...
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6answers
31k views

3 displays with Dell Laptop (2 monitors + laptop display)

I have a Dell Latitude 8420. It is connected to a dock. Is there any way to have two monitors connected to this setup and also use the laptop screen too? I want the desktop extended on the 3 ...
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37 views

External monitor display cuts in and out

I have a HP Pavilion 25bw external monitor that is connected to my lenovo T420s via a displayport to hdmi cable. When I boot into Ubuntu I have no issue but when I boot in Windows (7 or 8.1) the ...
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1answer
7k views

Misconfigured external monitor on Mac OS X Snow Leopard 10.6.3

I have an external monitor (specifically, an HDTV) hooked up to my 2.53GHz 13" macbook pro. This display works fine and I use it with my mac in clamshell mode (eg. with an external keyboard/mouse and ...
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3answers
6k views

How to quickly switch monitors on multi-monitor setup?

At my desktop PC, I have 3 displays hooked up on my Palit GeForce GTX 480 to extend my desktop: DVI: Samsung SyncMaster T220 (22" 16:10, 1680x1050, as my main) DVI: Samsung SyncMaster 940BF (19" ...
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1answer
215 views

Why does my MacBook Pro (with Iris 5200) only output 1920x1200 via HDMI?

I have a late-2013 15" retina MacBook Pro with an i7-4750HQ CPU and onboard Iris Pro 5200 graphics. And in case it makes any difference, I'm running Win8.1 on it. When I connect this MBP to an ...
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3answers
3k views

External monitor turning black intermittently

I have installed an external monitor (Dell ST2220L, 21.5 inch) on my laptop (Sony Vaio). I am using a DVI-D cable for connection. Since the laptop does not have a DVI-D port, I have connected a DVI-D ...
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222 views

Fuzzy image on Emerson LF320EM4 TV when using HDMI

I have a Dell Inspiron 17" laptop with an Intel HD Grapics 4000 video card, running Windows 7. It's also connected to an Emerson LF320EM4 TV via HDMI. All I want is a crisp image, but I am having ...