Questions tagged [external-display]

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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Getting ''no input signal'' in external monitor

I have Dell XPS 13 which is running Ubuntu 20.04. I had an old monitor, which had only VGA port. And I had a Thunderbolt adapter, which had only HDMI port. So I connected both of them using a VGA to ...
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Wake up laptop with closed lid when connected to external monitor

I had a problem with my laptop screen so right now I'm using an external monitor and I will like to use this setup without the need to open the lid. I was able to find this information some ...
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How to automatically change resolution when switching between two monitors using a HDMI hardware switch?

I have a Windows 10 notebook (Thinkpad T460p) that I pretty much use as a stationary PC. When I'm working I connect it to an external monitor. I also connect it to my TV a lot to watch movies or ...
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Every X minutes, sometimes seconds, my external monitor loses signal for a second?

I have this display: https://www.acer.com/ac/en/GB/content/model/UM.HV0EE.P01 Currently it's connected to my Desktop PC via DisplayPort, and to my Notebook via HDMI. I always just one, either my ...
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HDMI USB-C External Monitor and Mouse

I have a monitor that is connected via (i) HDMI to HDMI cable that goes into a (ii) HDMI to USB-C adapter (so two wires). The USB-C connects to my laptop. Video is transmitted fine. Audio is ...
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Computer wont recognize monitor turned off

Does anyone know what setting might be causing my computer to not recognize when an external monitor is turned off or on? I have an HP Elitebook 850 G6 that is connected over DisplayPort to a Dell ...
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How to automatically set external monitor britghtenss to minimum whenever it is switched on?

I have an Acer laptop running windows 10, and I occasionally connect a Lenovo external monitor through HDMI to see things in a bigger screen. Unfortunately, the external display defaults to brightness ...
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Computer monitor works with Xbox One but not with PCs

So a while ago my computer monitor suddenly stopped working with my Lenovo laptop and my Acer desktop. I've used three different HDMI cables - all of which work when I connect my computers to my ...
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Mouse Cursor on External Monitor

I'm having a strange issue with Windows 10. I have a Laptop with two external monitors. Out of the blue my cursor starting showing only the "working in the background" (white arrow with blue ring next ...
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I have a lenovo laptop with windows 7. I'm trying to connect 2 monitors

one through Display cable and the other available port is a VGA but it keeps telling me no VGA signal from your device. how can we fix this?
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Use Nvidia Optimus GPU for all rendering on Windows

I have a laptop (XPS 9570) where the Thunderbolt and HDMI outputs are connected to the integrated Intel HD 630, but which also contains a Nvidia 1050 Ti. The performance on the laptop's built-in 4K ...
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How can I use a 2009 iMac as an external monitor for a 2019 MacBook Air?

I tried to use a Thunderbolt cable and a Thunderbolt 3 (USB-C) to Thunderbolt 2 adaptor for this process but it was unsuccessful. My research led me to figure out that my 2009 27" iMac has a mini ...
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Second screen - how to avoid a mess and offscreen windows (Windows 10)

I have successfully set up a TV as second screen (HDMI) - mainly to watch YouTube on. Selected 'Desktop extended mode', so I can move the YouTube/Twitch windows over there. Even full-screen works fine....
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1answer
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Visual Artifact on Visual Studio Code

Windows: windows 10 home (latest update) Graphics Card: RTX 2060 (driver updated) RAM: 2×8GB I am having this artifact. And It is just random. I don't know why.. If I move the cursor to it, it ...
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Dell s2716dg display shifted and cutoff

My display will sometimes be shifted with a sliver duplicated from the center when i turn it on. I can fix it by changing and then resetting the resolution but it is annoying. This happens when the ...
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Emulate a display in Ubuntu Linux

I am trying to create some explainer content on an Ubuntu 19.10 machine. I have an i5 4th gen processor and an AMD Radeon R7 graphics card in my hardware. But I use an old monitor whose resolution ...
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Keep mouse and keyboard connected to monitor and switch monitor input between different sources?

I have a monitor with a Windows PC, a Macbook pro and a Raspberri Pi connected to it's different inputs. Switching to another source on the monitor works fine when it comes to the display, but it ...
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Monitor OSD menu not showing on a IIYAMA ProLite display (maybe after having plugged an HDMI device)

Context I have a desktop monitor, namely a IIyama ProLite E2403WS. I was able to plug this screen to a Lenovo laptop (Ubuntu 18.04) using a VGA cable (which is its only physical option to connect a ...
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Is it okay to close a laptop's lid when it's connected to an external monitor? [duplicate]

Is it okay to have your laptop closed and its own screen turned off when you connect it to an external monitor? I am asking because I once read that laptops use the keyboard for ventilation as well, ...
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Can't Reset Display Settings

I'm on Windows 10. Sometimes I connect my tv to my desktop to watch shows online from my couch. I connected the hdmi to my desktop and the screen was mirroring, but nothing was displaying on the tv. ...
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1answer
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USB 3.0 cable to connect laptop with extra monitor

I was trying to connect my laptop with an additional monitor to use as an extended display (using the cable shown in the image. I am not quite sure if this can be used for extending display). Upon ...
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Starting a laptop with an external display as its primary and default display

I have a Windows 10 Dell Laptop with a malfunctioning (broken) display. Is there any way to start / restart this laptop to have it use an external display as its primary default display? (e.g. USB-C)
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How to fix jagged poor quality text and icons on my 1080p 27inch external monitor connected to laptop through HDMI

Monitor: BenQ GW2780 1080p Overall picture quality is fine, but the icons and text are really horrible and painful to the eyes. Text is not blurry or dull, it's actually sharp and bright, but also ...
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How to set screen refresh rate on Windows 10 DirectX

I use a Lenovo Legion laptop for gaming (Windows 10 home), connected to an external screen with hdmi, Windows is set to duplicate the same image on both screens, the graphic card is the Nvidia 1050TI. ...
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Windows is not detecting my external monitor but device manager has it available

So I have a Dell laptop running windows 10 and a HDMI to VGA output which goes to an old monitor. I can confirm that this monitor works as it is my main desktop monitor. I can also confirm that the ...
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Cant use second monitor

I have a really old monitor (BENQ FP731) and I've been trying to get it to work on my Manjaro laptop but not much success so far. I'm using an HDMI to VGA adapter. My laptop appears to be detecting ...
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second monitor quit working after I used it to check another computer

I used my second monitor to check the video card on a pc I just bought that the monitor was not working. The monitor powered up and worked fine, then stopped functioning a day later. We have a new ...
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Lenovo IdeaPad G560 BIOS on an external display

I had an accident and my laptop screen was completely unusable, the rest of the components work properly because I connected an external monitor to check it. The problem is that I cannot access the ...
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Mac - after disconnecting display all windows shrink

I'm struggling with this problem for few months now. I have external display connected where macbook is closed. After disconnecting the display and opening the macbook all program windows are shrunk ...
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Windows 10: Move 2nd monitor windows on disconnect to 2nd virtual desktop

At work my laptop is connected to an external monitor which I use as secondary monitor (i.e. extended desktop). When attending meetings in other rooms with my laptop and I have to disconnect the ...
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How can I access the BIOS menu when I only have an external monitor connected to my laptop?

How can I access the bios menu when I only have an external monitor connected to my Asus N750JK-T4069H laptop? I tried the following: Put magnets on the laptop so it would think the lid is closed. ...
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Dark Region on Dell UltraSharp U3415W 34-Inch Curved LED-Lit Monitor

My Dell 34" monitor is having an issue where the center of the screen is dark, along with the bottom two corners. The image below is of the screen displaying a solid white color: The strangest thing ...
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Samsung S27H850 as external display via USB-C

I think about buying a Samsung S27H850 screen as an external display for my Macbok12 late 2016. I wonder if I can use this screen as an external Monitor via USB-C with a resolution of 2560 x 1440. The ...
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3 monitor display issues, proper connections for r9 270x troubleshooting

I am trying to hook up 3 monitors to this card and from my research it's more than possible. Here is an image to explain… I have a DVI to VGA adapter and a DVI to display port adapter. I also have ...
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1answer
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Screen flicker when ups switches to battery

I've bought new monitor. I'm facing flickering issue when lights are gone and my ups switches on battery. I even replaced my cpu with a laptop, the issue is still there. The monitor I was using before ...
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Cursor doesn't come back to touched point from a second monitor if the area is a specific app

I'm using Surface Pro X with an external monitor. When I lose the cursor I touch the main monitor to bring back the cursor. But when I touch on some apps like Edge, the cursor doesn't come back to ...
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1answer
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How to uncheck “safeboot” from System Configuration when only using keyboard

As stated in my previous question , I am using Windows 8.1. I do not use my laptop’s screen cause it is broken, so I use a monitor instead. So what happened was, I ran to “msconfig”, and went to the ...
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1answer
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Unusual white screen fading with lines on Monitor

Suddenly after updating my linux distro, my monitor is broken now. It is behaving strange. It's showing white screen on boot, with a slow graphics and fading effect. White line are also visible on ...
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Mac OS: Displaysleepnow on external monitor only

If I use pmset displaysleepnow in terminal, the integrated LCD (MacBook Pro laptop) and external display both sleep. Is it possible to sleep only the external display? The pmset manual shows it is ...
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Mirror browser window to second window

I have two displays set-up, one facing me, one facing a customer. I want to mirror the content of a page shown in Chrome to the second screen, without any of the other applications being displayed on ...
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1answer
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How to make a wireless display still showing a program when laptop is locked

I have a windows 10 laptop that connected via the wireless display with Samsung smart tv. The tv is displaying an excel workbook. When I lock my laptop, the tv is obviously will also lock too. Is ...
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Laptop display power off on connecting an external screen (it remains black)

On my laptop, when I connect an external screen it remains blank and the laptop display turns off. I cannot configure multi displays if I dont connect a display, neither if I connect it (black screen)....
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Mirror app window to the second display

I've got a setup with primary display (1920×1080px) and secondary (1024×768px). I'd like to share one app to the second screen, so that it's displayed on both screens. App I want to clone is ...
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1answer
44 views

External monitor flickers when CPU is high

I've got a MacBook Pro (15-inch, 2017 model, from work) plugged into a large 4K external monitor via a USB-C to DisplayPort cable. It's worked nicely since I started using this setup a few weeks ago, ...
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iMac Late 2013" wont recognize Lenovo L27q-10 Monitor when connected to DisplayPort connection

Recently I bought a Lenovo L27q-10 monitor which has DisplayPort v1.2 connection. I connected it to my iMac 27" (Late 2013) running macOS Catalina 10.15.2 with Mini DisplayPort to DisplayPort cable ...
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317 views

16" MacBook Pro blue pixel aliasing on external display

I have a new MBP 2019 16" with the AMD Radeon Pro 5500M 8 GB vid card. When I plugged my LG UltraFine 5K display in via USB-C I noticed strange light blue aliasing around font and images. Example (...
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MIracast: Protected content cannot be viewed on this device

I'm trying to use Miracast to extend my desktop. I'm using 2 laptops (an Asus and a Lenovo) both running windows 10. Although in the Projecting on this PC settings is stated that This device might ...
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2answers
143 views

Alternative to LCD monitor for Linux server

I have a linux home server that I use for file storage. I access over the network, usually via SSH. I an LCD monitor that I can hook up to it when I encounter issues with SSH, but I'd like to not have ...
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Wireless Monitor Display Brightness is Very Low

Every time I project my Laptop PC to another PC through wireless, the brightness becomes much lower. Resolution is fine though. https://www.laptopmag.com/articles/turn-windows-10-pc-into-wirelss-...
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I experience constant singal losses and miscellanous glitches when using external monitors with my laptop. How likely is it to be a hardware fault?

As the title states I've recently started experiencing various tears, glitches and signal losses on my external displays when trying to work on my work laptop (Lenovo ThinkPad L380 Yoga, video here). ...

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