My mac says "Your screen is being observed" on the lock screen. How do I tell what app is doing this?? I've already turned off screen recording permissions for all apps in the Privacy section. And rebooted.

Nov 1, 2021 · 11:04 PM UTC

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Update: I found the app causing the "Your screen is being observed" message! It is the drivers for the 3dconnexion SpaceMouse! Why that needs screen recording capability is beyond me.
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Replying to @aaronpk
I'm enjoying this entire thread as a follow-up to last year's early-pandemic classic, HOST.
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GIF
Replying to @aaronpk
Look behind you
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Replying to @aaronpk
This is a whole new class of Heisenbugs
Replying to @aaronpk
I run into this any time I've left a virtual display running, in my case an old iPad running Duet Display. Doubt that's what is happening in your case, but maybe it will trigger an idea!
Replying to @aaronpk
I mean is it driving a SDI matrix with multiple Hyperdecks? I mean it does appear to be being observed! Jokes aside, System Preferences > Security & Privacy > Screen Recording may give some clues.
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Replying to @aaronpk
Do you use DisplayLink for an external screen? If so, it’s probably that
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not wrong
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Screen sharing is turned off, and I've gone through all the obvious stuff at this point.
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