If you mount your monitor upside down for some reason you can choose 180 degrees.
Mac dual monitor cable.
You can make all of your displays mirror each other or extend your workspace with different apps and windows on each display.
Connect first monitor with hdmi cable connect second monitor with hdmi cable using mini display port to hdmi adapter.
As mentioned above to connect your imac to an external monitor you ll need an imac monitor adapter cable.
Whenever possible connect your displays to different busses to maximize performance.
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Go to arrangement tab and arrange monitors according to their position on your desk.
Browse the top ranked list of cables for dual monitor setup below along with associated reviews and opinions.
Find cables charging docks and battery cases for mac.
By default your second monitor will be set as the one that runs on the right side of your desktop configuration and it will be set up so that it is basically just another monitor that.
Open display preferences f4 system preferences display.
You can also move the dock.
Each pair of thunderbolt 3 ports on the left and right sides of your mac are different busses.
Charge and sync up your mac.
Don t connect more than two displays to either bus.
If you use your monitor in portrait mode for mobile development or text editing you can set the current angle in the rotation drop down menu.
Once your battle with cables and adapters is successfully resolved you can get down to the actual business of setting up dual monitors on your mac laptop.
If you connect a 6k 5k or multi cable 4k display use a different bus for each of the displays.
Great for my mac the only drawback is that the cable is a bit pricey but it was worth the for the speed.
Depending on which way your monitor articulates you choose either 90 or 270 degrees.
Until i get more time to write about this imac dual monitor setup process i ll just say see your mac system preferences panel for more dual monitor setup information imac second monitor monitor adapters cables.