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Old Screen Resolution programs are incompatible with Mac Studio Computer

This is basically a warning to not use any of the old screen resolution programs on the Mac Studio Computer. These old programs can put the computer into an incompatible screen mode that will cause the Mac Studio Display to go blank and the only way to correct the problem is for an Apple Store to erase the storage drive and reinstall the operating system. This happened to me. After the Mac Studio Computer was repaired I was able to reinstall all my data and programs using the Time Machine backup drive.

Mac Studio, macOS 12.5

Posted on Aug 9, 2022 1:40 AM

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Question marked as Top-ranking reply

Posted on Aug 9, 2022 6:59 AM

The "approved method" for restoring a damaged screen resolution is to restart into Safe Mode.


Safe Mode does a number of different things. Hold shift at startup, but have your userid and password at the ready.


A parade of unusual things happens.


• Your Mac loads just enough of the kernel to do a disk check. Then it proceeds to do a disk check. This can take an extra about five minutes.

• your userid and password are required, even if you normally auto-login. So have them handy.

• Your Mac adds ONLY a minimal set of Apple-Only extensions, Not including graphics acceleration extensions. Screen updates will therefore be wonky and slow, but it ultimately should be correct.

• Your Mac assumes defaults for as many settings as possible, including screen resolution. This is the key for re-setting the screen, but there is a little more to it: Resolution is likely to be lower and settings ordinary. Use this as a starting point to customize settings to your liking.

Any changes you make in Safe Mode will "stick" in regular mode after you restart.

• after restart in normal mode, your Mac will take slightly longer to start up [once] because it rebuilds some system caches.


"Works in Safe mode, fails in regular mode" implies "It's something you added".


How to use Safe Mode on your Mac

How to use safe mode on your Mac - Apple Support



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1 reply
Question marked as Top-ranking reply

Aug 9, 2022 6:59 AM in response to David Grisez

The "approved method" for restoring a damaged screen resolution is to restart into Safe Mode.


Safe Mode does a number of different things. Hold shift at startup, but have your userid and password at the ready.


A parade of unusual things happens.


• Your Mac loads just enough of the kernel to do a disk check. Then it proceeds to do a disk check. This can take an extra about five minutes.

• your userid and password are required, even if you normally auto-login. So have them handy.

• Your Mac adds ONLY a minimal set of Apple-Only extensions, Not including graphics acceleration extensions. Screen updates will therefore be wonky and slow, but it ultimately should be correct.

• Your Mac assumes defaults for as many settings as possible, including screen resolution. This is the key for re-setting the screen, but there is a little more to it: Resolution is likely to be lower and settings ordinary. Use this as a starting point to customize settings to your liking.

Any changes you make in Safe Mode will "stick" in regular mode after you restart.

• after restart in normal mode, your Mac will take slightly longer to start up [once] because it rebuilds some system caches.


"Works in Safe mode, fails in regular mode" implies "It's something you added".


How to use Safe Mode on your Mac

How to use safe mode on your Mac - Apple Support



Old Screen Resolution programs are incompatible with Mac Studio Computer

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