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We have bought 20 nos. of Mac Studios and Studio Monitors for our clinet. We use TV Logic External Monitors and connected through HDMI. Out of 20 systems there 6 Mac Studios are not sending video signal to external monitor. Rest of the systems are working fine. We have tested the cables and monitors. It seems there is some problem to be resolved in Mac studio.
Please help us with a right solution to resolve this issue.
Mac Studio, macOS 13.1
Hello!
I have the same issue with my brand new Mac Studio M2 Ultra.
Did you find any solution?
Hello!
I have the same issue with my brand new Mac Studio M2 Ultra.
Did you find any solution?
Some users of auxiliary displays like these have found that on-screen-display (internal settings in the display itself) are Vital to correct operation. You MUST adjust the setting so that the display is watching for the computer data on a specific input port.
The Mac uses a system that reminds me of “Plug and play” to determine what display is connected, and what its capabilities are.
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.
Modern Displays with multiple ports are sometimes busy scanning the other ports, looking for an input, and miss the query from the Mac. They need to pay attention to the port you are actually using, or they will miss the query.
Some displays have On-Screen Display settings that can be used to tell the display a computer is attached on a certain port, or a certain port should be highest priority. Changing those may make your display more responsive.
HDMI cables you want for HDMI-only Displays (higher resolutions than 720p TV sets) are marked as Certified with an anti-counterfeiting tag and are labeled:
"Premium High Speed HDMI cable" or that + "with Ethernet" --OR--
"Ultra High Speed HDMI cable" or that + "48G"
Cables with No Certification tags are good for your standard 720p TV set, and not much more.
HDMI was invented for HD TV sets. it works great at its original resolution of 720i or 720p. At higher resolutions, it quickly develops issues that are complex to solve, and the cables and adapters required to solve are NOT intuitive.
Mac Studio HDMI output not working
