KbCheck not working with macOS

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Azuna Sawada
Azuna Sawada 2021-5-16
回答： Fintan Nagle 2023-10-25
KbCheck does not work for me on my Mac. I've accepted input monitor from setting but it still does not work.
Could you give me any suggestions? Thank you.
I'm using following versions for each applications;
macOS 11.3.1
matlab 2021a
psychtoolbox 3.0.17
My command window is like this;
>> KbCheck
PsychHID-ERROR: During PsychHID invocation: macOS is preventing access to HID input devices like keyboard, keypad and mouse!
PsychHID-ERROR: This is because permission for 'Input Monitoring' is denied to Matlab 64-Bit, or to Terminal.app, if you started Matlab 64-Bit from a Terminal.
PsychHID-ERROR: Please rectify this manually now:
PsychHID-ERROR:
PsychHID-ERROR: 1. Quit Matlab 64-Bit, and also Terminal if it was used to launch Matlab 64-Bit.
PsychHID-ERROR: 2. Open 'System Preferences', then go to the 'Security & Privacy' control panel.
PsychHID-ERROR: 3. Select the 'Privacy' tab, and then in the list on the left, the item 'Input Monitoring'.
PsychHID-ERROR: 4. Make sure that Matlab 64-Bit, or similar, or maybe Terminal instead, is listed in the list on the right.
PsychHID-ERROR: E.g., names could be 'Terminal' or 'Octave' something, or 'MATLAB_R2020b.app' or similar for Matlab.
PsychHID-ERROR: 5. Make sure that the checkbox next to the name of the item is checked.
PsychHID-ERROR: 6. Restart Matlab 64-Bit.
PsychHID-ERROR: 7. Execute the 'KbCheck' command as a simple test, which should hopefully work now without errors.
PsychHID-ERROR: 8. If it doesn't work, retry the procedure - rinse, wash, repeat.
PsychHID-ERROR: 9. If it works without errors, retry if your own scripts or our demos now work again.
PsychHID-ERROR: 10. If none of this works, you may be able to buy paid priority support from us: 'help PsychPaidSupportAndServices'.
Error in function : Usage error
PsychHID-CRITICAL: PsychHID disabled due to macOS security restrictions! Emergency shutdown! 'clear all' or restart your application.
PTB-CRITICAL: Recursion stack underflow in module PsychHID! Brace for impact!
Error using PsychHID
Usage:
(null)
Error in KbCheck (line 182)
d = PsychHID('Devices');

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回答（2 个）

Kohei Miyata
Kohei Miyata 2021-6-14
I got the same problem but solved it by removing MATLAB from 'Input Monitoring' and adding it again.
Hope this helps!
  6 个评论
显示 4更早的评论
bianca baltaretu
bianca baltaretu 2022-4-6
worked for me, too! big save, thx!
spongeymongey
spongeymongey 2022-5-13
This worked for me too, thank you! :)

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Fintan Nagle
Fintan Nagle 2023-10-25
My Psychtoolbox was only responding to the Esc key on the touch bar, none of the keyboard keys.
I had to use
GetKeyboardIndices()
to determine that the keyboard was index 12, then pass 12 to KBCheck to tell it which keyboard to check.

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