el capitan second screen
When starting up El Capitan on my new iMac, he doesn't recognize my 2nd screen (Eizo). After restart, there is no problem. This happens every morning when I start the computer.
iMac, OS X El Capitan (10.11.3)
User profile for user:
sterling r
User level:
Community Specialist
Hi there Hoorndol,
It sounds like you have an external monitor connected that isn't being recognized when your computer wakes from sleep, but restarting the computer will make it work again. I would use the troubleshooting in the following article for external monitor issues, found here:
Get help with video issues on external displays connected to your Mac
This section in particular:
...restart your Mac in safe mode to reset the display resolution to defaults.
...reset your Mac's NVRAM and SMC to reset the video ports on your Mac to their defaults.
Be sure to test out the monitor after each of these steps. Thank you for using Apple Support Communities, let us know how that goes if you please!
