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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No HDMI output on Debian 8 laptop

WHAT DOESN'T WORK: I'm running Debian 8 on a Dell M4800 laptop and I'm unable to get it to talk to a new external monitor via either HDMI or DisplayPort. The Debian 8 (Mate) Live USB also does not ...
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3k 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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75 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 i5-...
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47 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. ...
2
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298 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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121 views

How is an external monitor recognised?

On Mountain Lion 10.8.2 (and also on Snow Leopard as far as I know) external monitors are somehow recognised and remembered by my laptop. For example: When I change the wallpaper on the external ...
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475 views

Using a tablet as a monitor

I would like to use a tablet (open to any at this point, just want something light) as a monitor as well. For example using a Nexus 7 as a monitor so I can see the post output of a PC.
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54 views

Monitor not displaying windows 7 correctly

I have just got a 15" Digimate TFT LCD monitor. I'm running Windows 7. Now the icons are too big, as are the windows in both browsers and word processing software - and everything has a bit to the ...
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412 views

Horizontal offset on second monitor over VGA only (osX)

Im running osX 10.7.4 on a macbook pro and for some reason my second monitor is playing up. If I connect via VGA I have a horizontal offset of about 200px (more than I can manually adjust for in my ...
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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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48 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 (2560*1440,60Hz)...
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83 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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34 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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77 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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58 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 ...
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408 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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943 views

Dual monitors go wireless

I will be using the Gigabyte GA-Z97X-UD5H-BK motherboard. So it natively supports 3 monitors output - hdmi, dvi, and vga. To make things complicated, i wish to have my monitors go wireless. I did a ...
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33 views

Monitor blinking when I plug an audio jack

My Dell Latitude E7440 laptop is connected to a Dell U2312HM monitor like so: laptop -> HDMI-DVI cable -> monitor. Sometimes when I plug or unplug the audio jack from my loudspeakers (brand new ...
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73 views

Samsung P2250 odd flickering

I noticed odd flickering on my external monitor, connected via HDMI. It alternates between black and brown, as seen here: https://www.youtube.com/watch?v=C7xJlCRTLZ8&feature=em-upload_owner The ...
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1k views

Installing windows 10 with an external screen

Basically I want to install this new windows 10 tehnical preview edition on my laptop, but the problem is that I have a broken laptop screen so I connected my laptop to a different monitor. I pressed ...
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77 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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83 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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35 views

Split Signal from Gateway NV59C

Using Gateway NV59C, Windows 7, VGA and HDMI outputs. Can I push signal to 2 extended displays (TV's) while the built in laptop display is "sleep." Currently using VGA signal because HDMI is not ...
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341 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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792 views

Dell Latitude E5430 laptop running Windows 7 - external monitor won't connect to computer

Please help!! I have a Dell Latitude E5430 laptop running Windows 7 64-bit and my external monitor is no longer connecting to the computer. I have been connecting it with a VGA cable and it was ...
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1k views

Disable screen power save mode when external monitor connected

I have a laptop with a HDMI connector (NVidia gfx), is it possible to stop the screen from going into power save mode only when I have something connected to the HDMI connector?
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100 views

Single N560GTX-Ti-Twin-Frozr-II with 3 monitors?

With a single N560GTX-Ti-Twin-Frozr-II card, can I output to three monitors? and if so, how? I am currently getting this when I attempt to enable all three monitors:
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683 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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23 views

Viewing Long Documents on Projector Vertically

Is there any such thing as being able to use a projector vertically so that you can view entire documents that are usually narrow in width and longer in length without having to scroll? In our ...
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168 views

Any option to turn off laptop display when I remote login to it from desktop?

My laptop has Windows 7 Enterprise Edition (Dell latitude E5420). I am using MSTSC on desktop computer, which also has Windows 7 Ultimate installed on it. Is there any option to turn off laptop ...
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541 views

Display monitor pivot software

I've acquired a Samsung SyncMaster 172N which (when originally sold) had the software to pivot it. I don't have the original disks. I've tried to use the LG Forte Pivot Softweare which came with my ...
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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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787 views

VLC is cropping my video for projector display

Context: What works: I'm trying to set up my VLC so that it displays through a projector. I set up my screen with two monitors, and set up VLC to have DirectX drawing to draw to the other screen. That ...
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63 views

Need to check whether my invercard or my graphics card is bad

I have a Dell vostro 1500 laptop and my display is not working. I mean by not working is it is not showing anything on the screen except some vertical lines..when i connected the external monitor it ...
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883 views

Enable/Detect external monitor from XP command line

Is there a command line utility that can enable (and clone) an external display in Windows XP? In Windows 7, we can do C:\Windows\System32\DisplaySwitch.exe /clone Is there an XP equivalent to ...
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118 views

Automatically switch between monitor 1 and monitor 2 every x minutes

At work we are planning to install 2 display monitors back to back (so at most one display can be seen by any person). There will be 1 computer that will display a different application on each ...
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341 views

My EliteBook is not auto picking 1080p for external monitor, poor display on forcing

I'm connecting my Samsung LED S22A300B to my HP EliteBook 6930p through VGA out. Laptop has Intel 4500MHD video card. I have latest drivers installed for both card and monitor. Only 800x600 and ...
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178 views

How to switch to laptop screen from external display automatically on power loss?

I recently got a external LCD display for my laptop. It is connected via the VGA port. I am using the "Projector Only" mode by pressing the Fn+F3 function on my laptop. This makes the laptop's screen ...
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382 views

External HP monitor has black border with Dell Windows 7 laptop

I have a new Dell laptop running Windows 7 and connected an extra HP S2031 monitor I had through a digital cable. It has an Intel 3000 chipset. I now have a black border around my screen on the HP ...
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245 views

Can you make Windows treat an external display exactly like an internal one?

I have Windows 7 Home 64-bit and a monitor attached to my desktop over DVI. Is there any way to make the system think that there is no external display attached or to make it think that the display ...
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308 views

ubuntu11.04 blackscreen when external monitor connected

my thinkpad x201i has ubuntu 11.04 installed. i try to connect an external monitor(a HP LCD) to the laptop. it worked at first time, everything is fine. but when i connect the monitor the second time, ...
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682 views

Dell Inspiron 9300 Laptop forgets External monitor (Westinghouse LCD TV) resolution setting on reboot

When I hook my laptop up to my LCD TV via the VGA cable it always starts off with a resolution of 1280x1024. I change it to my desired setting 1920x1080 and all is well until I reboot the computer and ...
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154 views

Second display freaks out when waking from sleep

I have two laptops, an older white MacBook and a brand new Macbook Pro. When either computer is on my desk, I connect it to a second, widescreen display (Acer, a couple years old, uses DVI). The ...
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9 views

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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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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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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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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32 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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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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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). ...