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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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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25 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
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
37 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
33 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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54 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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25 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
47 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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26 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
34 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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23 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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23 views

Laptop's monitor goes black after bios

I have a laptop whose monitor reaches bios and then when windows start it goes black. I connected it via vga to an external monitor and it runs good. So the monitor should not be burned from what I ...
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30 views

Asus F3JC, Built-in Display and External Monitor Issue

I have kind a weird situation with my laptop and can not figure out the reason of this behavior. My notebook boots and works normal as expected from a 10years old laptop beside its graphic department. ...
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43 views

Why does text seem a little blurry when I switched from DisplayPort to HDMI?

I recently switched to another laptop that doesn't have a miniDisplayPort, only USB Type-C. I haven't got the adapter for type-C yet so I'm using an HDMI cable to connect to my monitor ...
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74 views

Broken Laptop Screen - Display BIOS in External Monitor [Dell XPS l502x]

My laptop screen broke recently, so I connected an external display via HDMI. Though I can boot into Ubuntu, I still have to wait until the system boots to the login screen to see any output to the ...
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1answer
30 views

High res display: will it upscale from my low res laptop video?

My 4 year old Vaio/windows 7 has an hdmi port, and I regularly use it with a Dell UltraSharp U2410 x 1920 x 1080. This is a "regular" dpi display (92 dpi or so) I want to use it with a 4k or 5k ...
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1answer
73 views

Dell XPS 15 (2015) driving U3011 monitor at native res

I'm trying to get my laptop to drive my monitor at its native resolution: laptop is the new Skylake Dell XPS 15 9950 which only has an HDMI output for video monitor is a Dell U3011 with native ...
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32 views

Can I do 3 external monitor instead of 2 external+1 internal on a Macbook Pro 13"?

I know I can run 2 external plus the internal monitor without any issues. Since it won't let me add a third external (for a total of 4), I'd prefer just running the 3 external ones with a closed lid. ...
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1answer
56 views

One computer, 3 Monitors 1 TV switch 1 Monitor for TV

I have a 3 screen setup with a TV next to the monitors. I was wanting to occasionally switch the 3rd monitor out for the TV (before i was having to go under the desk and switch the HDMI cables around) ...
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181 views

Chrome Remote Desktop: How to turn off the display of the remote computer?

I'm accessing a remote Windows computer via my Chromebook, using Chrome Remote Desktop. Is there any way to configure the computer such that the display will be turned off, but it won't go to sleep ...
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14 views

Windows 10 change monitor size

I have two monitors connected to my computer (1st is 1920x1080, second is 1024x768). Windows recognizes them both but because of the 2nd monitors lower resolution thinks its smaller. However in ...
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1answer
13 views

Remote MacMini only displays on screens when accessed remotely

I have a MacMini we use to display onto 3 70" screens, usually it's used for music tv etc but occasionally used for presentations. currently the MacMini is only outputting to the screens when I ...
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68 views

Using DLNA certified smart TV as an external monitor for Linux

In general would be possible to start DLNA (server I guess) on Linux laptop which will be sharing/mirroring/cloning/extending ... laptop's desktop to Smart TV (which will act as a DLNA client I guess) ...
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8 views

Does all Display link hardware work together?

DisplayLink lets you run monitors off of a usb interface. To my understanding, all DisplayLink devices can have many of the same piece of hardware connected to one computer. Each manufacturer brags ...
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18 views

Connecting Dual Monitors

I have a DVI-I connection and a VGA connection. I have the monitors connected properly, but I do not have an option to extend the display, it is duplicated. When I look under Device Manager --> ...
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1answer
113 views

How can I improve yellow tint of on monitor?

I have Acer K222HQL monitor, AMD Radeon HD 8670M graphic card. Connection through HDMI. I tried different laptops, different OS (Linux distros, Windows), different ICC profiles (including ...
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2answers
69 views

Screen blackout and “No Signal” on screen, PC still runs with music. Fans on, LED on, Safe Mode works

I have a problem with my PC. I have had it for a year without any problems, but recently it's started to have some weird issues: Sometimes, the PC is up and running with music still playing in the ...
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105 views

Laptop screen flickering then going black with extended external monitor.

When my laptop is connected to an external monitor and the options are set to “extend screen” it will begin to flicker and then eventually just go blank. This can happen minutes after connecting or ...
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1answer
42 views

External monitor has dark banding around colors

I'm not sure how to describe this phenomenon properly. However, my new Asus VX24AH shows dark borders/banding around coloured boxes or text. It is plugged into a Late 2013 Retina MacBook Pro using ...
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10 views

Application sizing issue after disconnected from an external monitor

I have a Samsung Ativ book 9+ Intel core i7 5500 with Windows 10. I have hooked it up several times over a couple weeks to a Samsung 23" monitor via a micro HDMI - HDMI cable. The first couple dozen ...
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2answers
119 views

Monitor limited to 1280x1024

I have a Philips 202p4 CRT monitor, maximum resolution is 2048x1536, uses a VGA cable. My desktop running Windows 7 supports the maximum resolution. The monitor driver is Generic PnP When I plug the ...
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21 views

Pixel pitch of a monitor

How can the pixel pitch of a monitor be double another monitor if they both have the same resolution and are the same size? E.g., Acer B6 Series B286HK and ASUS PB287Q.
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31 views

Where are the Mimo Vue HD Drivers

I'm attempting to get a Mimo Vue HD working. So far the only drivers I've found that work are the Displaylink 7.9 drivers but this doesn't seem to work for the touchscreen part of the device. They ...
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22 views

Keeping second extended monitor ON when laptop lid is closed in Windows 10 [duplicate]

I have a second monitor plugued in the laptop and configured as an extended display. When I close the lid (first display) Windows 10 turns off the first display, and assume the second as the first ...
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1answer
98 views

Is there a video quality difference between a Mini-DisplayPort-to-HDMI conversion and a USB-to-HDMI conversion?

I recently bought a laptop (Dell XPS-13), which comes equipped with only a Mini-DisplayPort for video, which is not compatible with most displays I have to use (university projectors). USB-ports are ...
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1answer
35 views

How to access the advanced boot options before/during Windows 10 boots up

I have recently been messing around with a second monitor and the system's display settings and now, every time I try to boot up, the screen goes completely black (not even a mouse cursor) right after ...
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2answers
372 views

Turn kindle paperwhite into secondary display

Could be interesting if kindle paper white can be used as secondary display to extend the screen . There is a simple browser implemented into kindle that may help. I don't want to jailbreak my kindle ...
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13 views

Use a second mac as a non-mirrored secondary display wirelessly?

I know this is possible via a mini display port cable. Is there an app that will allow me to use the display of my second macbook as a non-mirrored secondary display on another mac wirelessly?
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24 views

Change actual HDMI output resolution, Intel Graphics

So I can change the resolution (and clone or extend) through control panel, but it still always outputs 1920x1080 on my tv with the size of the desktop just changing in size within that. Does anyone ...
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101 views

Dell monitor working with one HDMI cable, but not with others?

I have a Dell U2312HM monitor connected to a Dell Latitude E7440 laptop via a HDMI-DVI cable. I'm running it on Ubuntu 14.04. I had an issue with the monitor blinking from time to time (reported ...
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1answer
204 views

Dell monitor stuck in power save mode

I recently bought a Dell P2414H monitor for my office work. Since I am using a MacBook Air, I also bought a Belkin docking station to connect all my peripherals. While all of them appear to work ...
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191 views

Extend screen to two external monitors and duplicate on additional monitor

(I asked the same question over in the HP Support Forums with, probably, way too much detail. No responses.) I'm able to dock my HP ProBook 640 G1 on the HP 90W and extend my screen to two external ...
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92 views

Acer X193W monitor keeps displaying “no signal” after connecting it to laptop's HDMI port

I've had a 19" Acer X193W monitor lying around for a while now since my desktop PC crashed, so today I decided to have the monitor as an external display for my laptop. I went out to get an HDMI to ...
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17 views

Display interfaces that allow control of hardware display settings?

Are there any display interfaces (such as HDMI or DisplayPort) that support control of hardware display brightness, contrast, or other settings by a computer over that interface? This is a standard ...
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1answer
71 views

Switch to external display with shortcut instead of mouse on a Mac

I want to switch to my external display via shortcut and not by moving my cursor to the other screen.
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42 views

Extend Windows7 Laptop Screen to Samsung Android Phone

Did some digging, found a bunch of apps that claim to do this, but none are free and all have compatibility issues (some issues listed in app reviews specifically mention my video card). I am ...
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71 views

DisplayPort: 2550x1440 fails, but supported by machine

I recently purchased a Dell U2515H monitor. I want to use it with my MacBook Pro 13'' 2012, non-Retina, 2.5GHz. According to the tech specs, this MacBook can drive a single 2560x1600 pixel display ...
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3answers
717 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 ...
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17 views

Open Quicktime on second screen

I've got a number of MP4s which I'm watching individually, when I opened quicktime for the first time it opened up on my laptop screen and I dragged it onto the second screen where I want to watch the ...
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57 views

HDMI out on a tablet doesn't work with a 17" LCD monitor

I have a problem getting HDMI out of my tablet playing nice with video inputs of an old 17" monitor. Monitor in question is this, and the tablet is this. Monitor works just fine when connected to a PC ...