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Apple Mac mini M1 Big Sur and Kensington Slimblade?

Has anybody been able to run Kensington's Slimblade trackball (KensingtonWorks driver either 2.2.7 or 2.2.8) on a fresh install in a Mac mini M1 with Big Sur (11.2.3)? These are the latest versions as of this writing.


The trackball is not recognized in my new Mac mini M1. It works perfectly fine in my older Mac mini (Intel), same latest MacOS and KensingtonWorks.


My setup is mostly from Migration Assistant, but I've been deleting some deprecated stuff. Still no custom functionality in the trackball. It's working like a simple two-button mouse. It's working via USB connection but KensingtonWork says there's no USB connection and therefore no customization. Weird.


I'm tempted to wipe the M1 clean and do fresh install from scratch — but only if KensingtonWorks + Slimblade is known to work. It's a huge undertaking.


Anybody with experience? Anybody know for a fact if it works in a fresh install?

Mac mini, macOS 11.2

Posted on Apr 24, 2021 12:32 PM

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Posted on Apr 24, 2021 1:09 PM

I probably didn't use enough words to describe my situation.


I've already EXHAUSTED many many Kensington tech support sessions, many times on the phone, many through their webmail, reinstalling, uninstalling, preinstalling, overinstalling etc their 2.2.7, 2.2.8, etc, and that was AFTER Apple tech support pointed the finger that them, that it's their fault. The ultimate blanket statement was "just wait for the next version" which is really no help.


And so this is the classic circle of blame. Thank you for reading.

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Apr 24, 2021 1:09 PM in response to dialabrain

I probably didn't use enough words to describe my situation.


I've already EXHAUSTED many many Kensington tech support sessions, many times on the phone, many through their webmail, reinstalling, uninstalling, preinstalling, overinstalling etc their 2.2.7, 2.2.8, etc, and that was AFTER Apple tech support pointed the finger that them, that it's their fault. The ultimate blanket statement was "just wait for the next version" which is really no help.


And so this is the classic circle of blame. Thank you for reading.

May 6, 2021 11:06 AM in response to OllieWaton

Thanks for the reply, but yes it works after a fresh install.


The table is now turned 180. I bit the bullet, reinstalled MacOS in Recovery mode. The latest version last week was 11.3 from the cloud.


Then the very first thing I did was install Kensingtonworks 2.2.8. I can report that every feature in it works fine. The downside, of course, is having to spend (or waste) an entire week reinstalling, retrieving and resetting everything else. Even today I'm still sorting and hunting for solutions in Music app. Had to abandon a few cherished apps and utilities, too. Maybe those were the conflicts.


Kensington will not help. Apple will not help. Pundits will try to teach. But there's a difference between knowing the path and walking the path.

Apr 24, 2021 5:43 PM in response to Ken2G5

Ken2G5 wrote:

I've provided more information asking ANYBODY (else) if they actually have experience successfully installing KensingtonWorks despite what Kensington claims.

So Kensington itself was unable to get their software working? And you are asking if there are any other Apple customers with an M1 computer and your specific trackball who were able to succeed where the developers of the product itself had failed?


I was curious about this so I downloaded the installer. It is quite unusual. There are some interested comments in the postinstall scripts written in Chinese that suggest the developers themselves aren't sure if it is going to work.


It's working like a simple two-button mouse. It's working via USB connection but KensingtonWork says there's no USB connection and therefore no customization. Weird.

Unfortunately, that's really bad news. That tells me that those skeptical Chinese developers were right. Whoever hacked up the Kensington installer for Catalina and Big Sur did a terrible job. But it may not have been their fault. As ugly as that part of the installer is, you are reporting that it works, just without any customization.


The part that defines those customizations is written in the notorious "electron" framework. That may be the part that isn't working properly on M1. This is a cross-platform framework designed so that developers don't have to bother writing an actual Mac app. Apple went to great efforts to ensure that virtually all existing Mac software would run without modification on the new chip. Unfortunately, the electron framework does really crazy things, unlike any other app. It took a long time for its developers to get it working on Apple Silicon. It wouldn't surprise me that any app trying hardware integration via electron would have all kinds of problems. There's definitely no "circle of blame" here. Kensington took shortcuts and paid for it. As Peregrin Took says, "short cuts make long delays".


I'm afraid that you really have no option but to wait for the next version.

Apple Mac mini M1 Big Sur and Kensington Slimblade?

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