How to hook up an external monitor(Acer Chromebook) to my old 2011 imac
Does anyone know how to connect my Acer Chromebook to my 2011 iMac? Any help will be very appreciated.
iMac 27", macOS 10.13
Which do you want to use as an additional Monitor? Acer has an HDMI port I think, but out only?
Target Display Mode isn’t supported on iMac models with Retina display. Only iMac (27-inch, Late 2009), iMac (27-inch, Mid 2010), and iMac (Mid 2011 to Mid 2014) support Target Display Mode.
Use a 27-inch iMac with a Mini DisplayPort as an external display
If you have a 27-inch iMac with a Mini DisplayPort , any other Mac with a Mini DisplayPort or Thunderbolt port can use it as a display. Make sure you have a Mini DisplayPort to Mini DisplayPort cable.
If the primary Mac has a Thunderbolt port, it can play audio and video on the iMac. If the primary Mac has a Mini DisplayPort, it may be able to play its audio.
To see if it can, go to the primary Mac, choose Apple menu > About This Mac, click System Report, then select Audio in the Hardware category. A list of your computer’s audio devices appears. If HDMI Output or HDMI/DisplayPort Output is listed, your computer’s Mini DisplayPort can send audio. Make sure you use a Mini DisplayPort cable that carries both audio and video.
Connect the Mini DisplayPort cable to the ports on each Mac.
Make sure both computers are turned on and awake.
Press Command-F2 on the keyboard of the external display iMac.
If you want the iMac to play audio as well as video from the primary Mac, choose Apple menu > System Preferences, click Sound, then click Output.
Select the iMac in the list of devices.
https://support.apple.com/guide/mac-help/use-an-imac-as-a-display-mh30822/mac