Can someone tell me what is broken here ? This is my late 2013 IMac. It stopped showing things a couple days ago but an external Monitor shows everything. The screen is
Imac as a second monitor - Apple Community
Connect External Monitor with Your iMac Late 2013 #imac #thunderbolt #displayport - YouTube
Step-by-step Guide to Use iMac as an External Monitor for PC/Mac
iMac mit dem Bildschirm-Synchronisationsmodus als Display nutzen - Apple Support (DE)
:max_bytes(150000):strip_icc()/use-imac-as-monitor-with-target-display-mode-2260906-705215bd6f3940efbff05dc374e0a44d.png "How to Use Your Old iMac as a Monitor")
How to Use Your Old iMac as a Monitor
iMac 27-inch (2013) Review | Trusted Reviews
New CPUs, faster Wi-Fi, same flaws: Apple's 2013 iMac reviewed | Ars Technica
Apple iMac 21.5-inch and 27-inch (Late 2013) reviews | Macworld
Old iMac as a monitor - instructions for screen synchro »Sir Apfelot
iMac (late 2013) External Display for INTEL MacBook Pro - YouTube
Display or GPU issue? (Late 2013 iMac 21.5inch A1418) : r/mac
Can I use my 2013 iMac as a monitor - OurDeal.co.uk
Performance - Apple 21-inch iMac, late 2013 review - Page 3 | TechRadar
How to use an iMac as an external monitor | Macworld
display - Using iMac late 2013 as external monitor to HP EliteBook 820 G3 on Windows 10 - Ask Different
MY M1 MAC MINI AND MY 2013 IMAC - YouTube
display - Using iMac late 2013 as external monitor to HP EliteBook 820 G3 on Windows 10 - Ask Different
Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET
How to Use External Monitors With Mac Laptops and Desktops
How to Use an iMac as an External Monitor
How to Connect More External Displays to Apple Silicon M1 Macs – Plugable Technologies
Use an iMac as an External Monitor - YouTube
Step-by-step Guide to Use iMac as an External Monitor for PC/Mac
Repurposing an Older iMac As a Monitor and Server - Stephen Foskett, Pack Rat
