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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Can I do 3 external monitor instead of 2 external+1 internal on a MBP 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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25 views

CLI tool to change brightness, must work for external monitors as well [on hold]

I am looking for a tool usable from the command line that would allow me to change brightness of my external monitors by specifying for example a value from 0-100 or something like that. Must be ...
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1answer
21 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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17 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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12 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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25 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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7 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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17 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
81 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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40 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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37 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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35 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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7 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
63 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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20 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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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
75 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
24 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
155 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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11 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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18 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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54 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
111 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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73 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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59 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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15 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
40 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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31 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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50 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
344 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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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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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 ...
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1answer
101 views

hdmi to thunderbolt in for macbook

The goal: Get apple tv to play on my external display. The components: Apple TV (4th gen) Macbook Pro (mid 2015) w/ports 2x thunderbolt, 2x usb, 1x hdmi, 1x audio out / mic in. Apple Cinema ...
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1answer
34 views

make a mirror of the extended display in the primary display

I know this sounds ridiculous, but is there a way I can create some kind of window to view what is being displayed on a second montitor that is extended from the primary view? In the end, I'd like to ...
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1answer
27 views

How can a team of users share a large monitor?

Okay folks...I know this is a bit dorky but...I work in an engineering group and it would sometimes be nice to have a large monitor that everybody can project their screen onto - much like NCIS when ...
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36 views

External display via DispayPort shows black, when laptop closed (it's not off)

i connected my laptop (x230/Win7) to my new 4K Monitor from Phillips through it's Ultrabase 3 via the DisplayPort. I recognized that if connected over DP the external display shows black if i close ...
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1answer
225 views

4k Monitor. Higher PPI than iMac 27". More Pixelated than iMac

I'm looking to understand exactly why a monitor with higher number of pixels per inch (albeit slightly so), than the standard 27" iMac, cannot produce image that is at least just as sharp as images on ...
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28 views

Proper configuration of HDTV on Toshiba laptop

I've recently bought a Toshiba Satellite L50-C1709 which has a Geforce GTX 950M 4GB graphics card. Today, I bought a Samsung Smart TV 22" to use it as a monitor (I might replace it with a 24" ...
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302 views

MacBook Pro doesn't wake up 4K external display connected via the displayport

I have a MacBook Pro Retina 15" Mid 2015 running Mac OS X 10.11 (El Capitan) and I have a Samsung U32D970Q 4K external display that I would like to use in a closed clamshell mode through displayport ...
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0answers
33 views

Is it possible to enter bios using an external monitor on a Vaio VGN-FE21S?

The manual says Fn+F7 should switch to the external display but this isn't working for me at power on. The internal LCD is dead so I was hoping to be able to enter BIOS using the external monitor. ...
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1answer
15 views

Monitor (TV) shows as active even when turned off

I have my primary PC with the monitor (DP) and TV (HDMI) connected. When I turn off the TV, my PC till shows that TV as active display. Any ideas?
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2answers
441 views

Daisy chain 2 external monitors on laptop without DisplayPort [closed]

I have: 2 Dell U2414H Monitors 1 DP in 1 mini DP in 1 DP out 2 HDMI A laptop with (No DisplayPort) i7-4710MQ processor 16GB DDR3 (2x8) GT 840M - 2.0GB DDR3 1 HDMI port 2 x USB 3.0 PORTS & ...
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1answer
132 views

Using USB keyboard on Dell U2514/MacBook Pro

I recently got a Dell U2415 monitor that I'm using with my MacBook Pro (2014). I want something I thought was simple: using a USB keyboard that's plugged in to the monitor's USB port. The monitor is ...
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1answer
40 views

Turned on my computer to find resolution all messed up, screen identified as “Generic Non PnP Screen”

I turned on my computer to find the resolution abnormally low (everything was big etc). In the Device Manager, my screen was being identified as Generic Non-PnP Screen. I have a Windows 8.1 desktop, ...
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Capabilities of new & upcoming Wireless based Display protocols & mechanisms?

The up & coming High Resolution/ HiDPI QHD, UHD, 4K Displays are currently being supported by newer & more capable revisions of Display Port, HDMI and possibly some merging/ overlaps with ...
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43 views

How to set lower than 800 x 600 to secondary monitor

I have an old analog monitor that its resolution is lower than 800x600. I need to set it as my secondary monitor. But the lowest resolution of windows is just 800x600 How to force windows to set ...
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36 views

Acer V223HQ monitor limited to 1280 x 1024 VGA

I'm currently using my work laptop at home as mine is fried at the shop. The issue is the monitor I'd been using with my home machine with the same VGA cable was giving me 1920 x 1080. With the work ...
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113 views

Lenovo G580 external monitor resolution issue using VGA

I am connecting an HP S2031 monitor to my Lenovo G580, running Windows 8.1. When I connect the HP monitor as an external extended display through VGA (it does not have an HDMI), in the Screen ...