I have two Mac Pro 2013 computers and only one display. Is it ok to switch the display from one Mac Pro to the other without turning power off ... both Macs powered on for the unplug and re-plug of the display?
voltage levels are fairly low, and nothing is likely to be damaged by "live" plugging if that is what your need. But getting your displays recognized is a different story entirely.
The Mac does not rely on Windows-like side-loaded "Drivers" which are actually packages of resolutions and settings for a specific display. Instead, it goes straight to the immutable source -- it asks the display itself.
To get a Mac display to become active, you need the Mac to query the display, and the display to answer with its name and capabilities. Otherwise, the display will not be shown as present, and no data will be sent to the display. "No signal detected" is generated by the DISPLAY, not by the Mac.
This query is only sent at certain times:
• at startup
• at wake from sleep — so momentarily sleeping and waking your Mac may work
• at insertion of the Mac-end of the display-cable, provided everything on that cable is ready-to-go
• hold the Option key while you click on the (Detect Display) button that will appear in Displays preferences (from another display)
so try doing some of those things and see if the display comes alive.
voltage levels are fairly low, and nothing is likely to be damaged by "live" plugging if that is what your need. But getting your displays recognized is a different story entirely.
The Mac does not rely on Windows-like side-loaded "Drivers" which are actually packages of resolutions and settings for a specific display. Instead, it goes straight to the immutable source -- it asks the display itself.
To get a Mac display to become active, you need the Mac to query the display, and the display to answer with its name and capabilities. Otherwise, the display will not be shown as present, and no data will be sent to the display. "No signal detected" is generated by the DISPLAY, not by the Mac.
This query is only sent at certain times:
• at startup
• at wake from sleep — so momentarily sleeping and waking your Mac may work
• at insertion of the Mac-end of the display-cable, provided everything on that cable is ready-to-go
• hold the Option key while you click on the (Detect Display) button that will appear in Displays preferences (from another display)
so try doing some of those things and see if the display comes alive.
What display and what inputs does it have...?
If the display has multiple inputs, you should be able to connect the Mac Pro's to different inputs on the display and then switch the displays input source without having to move a cable.
Switch Display between Two Mac Pro 2013
