Mac Superuser
The essential guide to essential knowledge for essential stuff

Troubleshooting

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dscacheutil -flushcache
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Diagnostics

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ps aux | grep fsck
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sudo kill -9 2587
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      I think I found a solution! It's not about the audio output - it's about what display is your 'main display'. You need to go to System preferences > Display > Arrangement. Here, drag that little white title bar on the main display screen, which currently will be on the HDMi display, to your mac display. Apple will always keep the audio output corresponding to the main display as the main audio source. Once you change the main display to your inbuilt display, the HDMi audio output is never used by default! This solved it for me.
      A simple fast way to select connected Audio Output devices, is to hold the Alt (option) key and click the Sound icon on your Menu Bar.

Bypass Gatekeep to use apps from anywhere

    2.
    Control + RMB open an app

Apps

Essentials Shortcuts

Shortcut
Function
Cmd shift A
Applications
Command + Spacebar
Finder bar
Cmd + Shift + G
Go to path
Option + RMB on file
Get file name
Shift-Cmd-Q
Log out
F3
Mission Control
Cmd-F3
Show Desktop
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Get path directory of file (hold option + RMB)

Notes

    Make use of Finder top bar
    Preview in 'collage"
Last modified 5mo ago