I dont have the option for arrangement on my display preferences... how else can i add another monitor to my imac?
iMac 21.5″, macOS 10.14
Well the imac will not support Target Display Mode, that functionality was only available on late 2009 27" iMacs through 2014 iMacs. So because you have a 2017 iMac it simply will not work. Therefore if you need an external display for your 2012 MBA then you need to buy one.
MBA is MacBook Air
To learn what computers you own, please click the Apple symbol in the upper left of the display and then click About this mac. The window that pops up will tell you the year of each device. For example, Late 2009 27" iMac
Is the monitor plugged in? Are you seeing anything on it?
Are you mirroring rather than extended desktop?
It's actually my macbook air that I'm trying to use with my iMac desktop. I'm using the thunderbolt connector and the usb-c adaptor... but there's no options in the display preferences
Then you must be specific, what year iMac do you have and what year MBA do you have?
hmm, not sure... going into about this mac > support > mac resources... it opens up a web browser but "error, try deleting your cookies" and I've cleared that already
I cannot find the article at the moment, but it critically depends on what macs you have.
Just go to "about this mac"
Also, I don't know what an "MBA" is
Your other computer. MacBook Air.
Oh i see... the MBA is mid 2012, and iMac 2017
Both are operating on Mojave
adding a monitor
