added a 2nd monitor to imac but the dock is half off the screen on 2nd monitor
I tried all monitor settings nothing helped. it's like 1 " to large around the entire 2nd monitor
Question marked as
Best reply
Review the Extended Desktop directions, at > Use external monitors with your Mac - Apple Support
go to Apple > System Preferences > Displays
select the Arrangement tab, un-check Mirror Displays and arrange the displays.
go back to the Displays tab, hold the Alt (option) key and click on the Scaled button.
choose the correct resolution for the iMac display and then for the external display.
then go to Apple > System Preferences > Mission Control and un-check all of the boxes.
which should give you one dock that is the correct size.
If not or that's not exactly what you want? At least having those boxes un-checked, will make it easier to setup the dual display to your liking.