Questions tagged [display]

Generally a visual screen used to display graphical or text output

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Disable Secondary Alert

I have an iphone 8 and use the device calendar. I am getting duplicate alerts. I've corrected what I can in settings. Do you know of a way to remove them from all the events without having to do so ...
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Is there a fix for UGreen USB-C to HDMI cable not working in Catalina?

I have a UGreen 4K Nylon USB-C to HDMI cable which mysteriously stopped working with my 2016 15" MacBook Pro as soon as I upgraded to Catalina. Has anyone else had issues with this cable and are ...
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Video issues when connecting Macbook Pro 2017 with 2 Dell external monitors

I have a Macbook Pro 2017 (Mojave 10.14.6) connected to 2 Dell U2417H monitors. Monitor 1 is in portrait mode and monitor 2 is in landscape mode. Monitor 1 is connected via an HDMI cable straight ...
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Mirror only one window on a second monitor

For presentation purposes, I would like to reproduce the above setup in a dual monitor context. Each color represents one window meaning the two safari windows should belong to their own screen while ...
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Number of supported screens on MacBook Pro

I have a Mid-2018 Mac Book Pro. On its 2nd Display Support Option it writes the following *In addition to simultaneous support of the internal display, this model supports a single external ...
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How to change DPI?

I had monitor with scaling settings. They change DPI: (on LG Z27, 4K, via USB-C) Now I have monitor with resolution settings. They change resolution and make picture worse: (on Aorus FI27Q, 2K, via ...
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Monitor that I can control its brightness from keyboards/OS settings section

I am stuck with a 2008 Apple Cinema Display because every monitor I try, I can not control its brightness from the keyboard and that's a must for me. I am unsure what I should be searching for to get ...
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15 views

How to automatically turn black main monitor when external monitor is connected while using internal keyboard [duplicate]

When I use external display, I always use screen mirroring and set main display brightness to zero. Macbook remembers screen mirroring config, but I must turn down the brightness manually every time ...
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Mac OS - Multiple External Monitors - Unable to modify reolution on primary display

I have connected my MacBook Pro to a docking station in hopes of connecting it to two external displays for a home office setup. With the lid closed I am able to get the displays to appear on both of ...
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Sonnet eGFX and LG UltraFine 5K

I am trying to connect 3 screens to a 2018 13-inch MacBook Pro. An LG UltraFine 5K plus 2 additional 4K screens. I am considering adding a Sonnet eGFX Breakaway Puck Radeon RX 560 to my setup to ...
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How to avoid external displays limit in iMac 4K?

last month I asked about how many monitors an iMac 21.5 4k can handle. So as suggested I went and checked in apple support page, turns out this iMac only supports up to two additional displays and I ...
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External monitor not working properly on macOS Catalina

Before upgrading to macOS Catalina my AOC 2369VM monitor works fine with HDMI - USB Type C adapter. Once I installed macOS Cataline, the monitor immediately became badly connected or not connected at ...
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Black display - MacBook Pro 13" Function Keys 2017

This happened out of the blue. Screen went black and I haven’t been able to get it to come back on. Prerequisites: • No liquid damage • No drops/impacts recently • Nothing out of the norm leading ...
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Is it possible to change the screen display names in MacOS for a multi monitor setup

I have a 15" MacBook Pro (with Catalina 10.15.1) with a multi monitor setup using USB-C adapters: I've using this setup since Maverick, as you can see in the next screenshot, the 3 screens have the ...
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Macbook Pro 2019 is unable to detect more than 1 monitor

I have two Dell monitors and have bought Honeywell Dock to connect my MacBook to those two monitors I connected one monitor to my Dock using VGA and another monitor to my dock using HDMI. When I ...
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Mac goes unexpected to sleep

After upgrading to MacOS Catalina (10.15.1) I have had troubles with the mac going to sleep mode when i close the lid while having external monitors connected. It used to be working like this: What ...
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How to connect multiple displays to a Macbook Pro through USB-C

I have 3 displays fixed on my wall. 1 VGA 60hz, 1 HDMI 60z, and 1 Display Port 144hz. They all are connected to my gaming computer. I used to do all my coding stuff on that computer and that's why I ...
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Touch Screen drivers for Asus VT229H to work with macOS Mojave

I recently bought the multi-touch touchscreen monitor Asus VT229H. The display quality is fantastic, and I managed to attach it as external monitor for my iMac. The problem is: the touch screen ...
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CPU usage is too high with Catalina when macbook-pro connected to an external monitor

The same problem was occurring on the High Sierra. I was hoping it will be fixed on Catalina but unfortunately, I didn't. I use Catalina 10.15.1 on my MacBook Pro and work with an external monitor ...
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How many 1080p Monitors i can connect to MacBook pro 13 inch 2019 model with 4 thunderbolt port? [duplicate]

Can anyone please help me to connect my MacBook pro 13 inches with 4 thunderbolts to 3 external monitors ( one U2414H and two P2419H) ? I tried connecting them using three type-c to HDMI convertors ...
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1answer
96 views

Can my external monitor charge 16" MacBook Pro over USB-C while using it?

I am planning to use my new 16" MacBook Pro with an external display which is equipped with a USB-C output. I use the setup generally in extended display mode, and sometimes in clamshell mode. I am ...
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MacBook Pro (mid 2012) does not detect internal screen

I have an old MacBook Pro 13 which does not react as it should. after a liquid damage i have changed the display. Unfortunately it only recognizes the internal display when I connect an external one. ...
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The app-switcher does not hover in the main screen [duplicate]

This is my setup of the screens: The small screen on the right is my Mac, the other two are external screens. As you can see by the white strip, the main screen is the one in the middle. ...
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Connecting Apple Cinema display removes wallpaper and hides dock

I have two monitors - a ThinkVision, another Apple 27" cinema. I have in the past individually connected them to 2018 MBP Retina via Thunderbolt. OS is Catalina. 32GB RAM. Radeon Pro 560X 4GB. When I ...
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Can the new 2019 16-inch Macbook Pro support 8K resolution?

The Tech Specs site says the laptop simultaneously supports full native resolution on the built-in display and: Up to two displays with 6016‑by‑3384 resolution at 60Hz at over a billion colors Up to ...
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MacBook Pro Mid 2015 Display flickering to static/weird colour during usage

About a day ago my 2015 MacBook Pro running macOS 10.15 Beta (19A536g) started experiencing an issue where the display would flicker to different colors randomly during usage. Moving the mouse around ...
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Simulating a non-retina display

Sometimes I need to test my designs (SVGs) in a regular, non-retina display, so I can feel how it looks for users behind such displays. What I normally do is using an old Windows notebook, but it'd be ...
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How do I get my monitor to run at the correct resolution reliably?

I just started a new remote job. They shipped me a 2018 15" Macbook Pro, a 32" Asus PB328Q monitor (QHD, aka 2560x1440), and a Satechi USB-C adapter, with an HDMI cable for connecting the monitor. All ...
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How to enable external display on touchbar MBP with broken screen

I have a very recent (this year) MacBook Pro with touchbar and 4 USB-C ports (not sure the exact model, as the screen doesn't work). Somehow while going through airport security yesterday, something ...
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17 views

Switch contents of display from laptop to external monitor

I use my mac screen and an external monitor. Is it possible to swap the entire contents of my laptop with what is on my external monitor? So below I would like to swap the contents of my monitor ...
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Macbook Pro on but display is blank

Was using the MacBook Pro a few days ago without any issues. Shut the lid in the middle of working, went to a coffee shop, and upon opening it back up the display was blank even though the computer ...
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Can I turn off macOS Catalina's internal display without close the lid while using an external monitor?

I'm using two external monitors, and I want to be able to disable the built-in monitor without closing the lid. Option with disabling brightness doesn't fit my requirements because I don't want every ...
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1answer
48 views

Dual External Monitors on a (late) 2017 MacBook Pro

I'm trying to set up my 2017 MBP with two external monitors. I have a Totu USB C Hub, TOTU 12-in-1 Type C Hub with dual HDMI inputs. It's supposed to allow me to use two external monitors with my MBP ...
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2018 Mac Mini no longer sending video or audio to TV via HDMI

I have a 2018 Mac Mini connected to a TCL Roku TV (43S403). There used to be no issue using the TV as a monitor, but recently, whenever I go to the input for my Mac it says "No signal (is it on?)". I'...
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Cannot get 4k monitor to work with macbook air early 2014?

I have an early 2014 macbook air and per this I can connect it with a 4K monitor with some success. After resetting the NVRAM (Opt+Cmd+P+R) I got my Display Settings to show ASUS VP28U with mirror ...
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Macbook Air 11-inch grey screen

MacBook Air 11-inch, Mid 2013 screen went grey after the upgrade. No Apple logo and when I connect it to the external screen it still shows grey but I can hear the chime sound when I power it on.
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MacBook Windows shift on external monitors after Catalina upgrade

I have 2 external monitors connected to my MacBook pro (15-inch), one horizontal, one vertical if that's relevant. They worked perfectly before. Since upgrading to Catalina, whenever I unlock it after ...
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HDMI monitor cuts off DP Monitor on a MacBook Pro 2015 13'

I have two monitors Dell UltraSharp U2719DX and Dell UltraSharp U2715H. I have a MacBook Pro 2015 13-inch that still works. My U2719DX is plugged into my Mac via DisplayPort (monitor) to mini ...
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1answer
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New MacBook Pro screen goes black when opened past a certain angle

My MacBook PRM went black suddenly as it was being used. no reasons. PRAM reset didnt help. When connected to external monitors there is no issue. The display is good as the lid is opened up to ...
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35 views

How to use Thunderbolt Display with Laptop

I am currently using my 2015 MacBook Pro with my thunderbolt display. I want to buy a new laptop (HP) but I realized that I would have some problems to connect it to the Thunderbolt display. The new ...
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1answer
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How many monitors iMac 21.5 4K can handle?

Well, Im a programmer and I want bunch of monitors. I have a 21.5 Inch 5K iMac, from 2017 Just bought a DUAL HDMI Adapter from StarTech.com My intention is to have 3 extra displays because the Mac ...
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How do you disable Smart Invert or truly invert all of your screen colors?

In previous macOS, when you used the Invert Colors feature (Preferences > Accessibility > Display > Invert Colors), all the colors on the screen would become inverted, including images, so a page like ...
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Is there an adapter to combine MacBook's “Thunderbolt & USB & Power” out into a single “USB-C” cable for a new monitor?

I currently have a 2015 13" MacBook Pro and a 24" Apple Cinema Display monitor. The monitor has three connectors built into one cable: Mini DisplayPort, which fits into MacBook's Thunderbolt slot (...
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Keyboard Lag on ultrawide monitor (2560 x 1080)

I'm using an LG 25UM58-P ultrawide monitor (2560x1080 @ 60hz), connected via mini display port to my MBP (Early 2015, Intel Iris Graphics 6100). I've used this setup for a few months without issue. ...
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Can not change brightness on Macbook Pro Late 2013

I can not change the brightness on my Mac. If I want it to work, I must restart it. I have tried it on both macOS 10.13 and 10.14. I reset NVRAM but it did not work. I was trying to reset SMC but ...
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Can't run 60hz on external display with MacBook Pro 15 2019

I just bought Baseus Enjoy series Type-C to HDMI*2+PD HD intelligent HUB adapter and it works only on 30hz port on my Samsung u28e590ds monitor. I use MacBook Pro 15 2019. If I plug into 60hz port it ...
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49 views

HP VH 240a external monitor not working after Mac Catalina update

My HP external monitor was working fine with Mojave but when I updated to Catalina it stopped working. All I'm seeing is a blank screen. I downloaded DisplayLinkUserAgent hoping that it'd resolve the ...
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45 views

How do I force a retina display to always stay on the maximum scaled resolution?

On previous iterations of OS X, and seemingly moreso in Catalina, my MacBook Pro (15-inch, 2018), changes the resolution of the retina built-in panel to "Default for display" instead of the Scaled: ...
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Screen glitches after installing ATI Radeon HD on my old Mac Pro

I decided to try and upgrade my old 2009 Mac Pro and update it based on the various guides that I've seen online. I figured the best 1st step would be to make sure that I flash it from 4.1 to 5.1, and ...
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39 views

Set alarm every 2 hour display on (Mac)

I intend to save my eyes healthy. So, i want to set alarm every 2 hour computer i used. I have tried to set on calender and clock, but i can't find the way.