Mac OS X

Mac Mini and Studio Display

A user purchased Mac Mini M2 Pro (2023) with 3 Apple Studio 27'' 5K Displays. An Apple store happily sold him everything ensuring that it will "just work". Unfortunately, this wasn't the case. Although Mac Mini M2 Pro does support 3 displays, Apple tech specs page says the following:

Up to three displays: Two displays with up to 6K resolution at 60Hz over Thunderbolt and one display with up to 4K resolution at 60Hz over HDMI.

This seemed acceptable to the user and he purchased HDMI to Thunderbolt 4 / USB-C 4K cable to connect the third screen.

MX Keys

The following terminal script can be used to map Home and End keys on macOS so they work in the same way as they do in Windows and Linux: Home - beginning of the line, End - end of the line, Shift + Home - select text between cursor and beginning of the line, etc.

mkdir -p $HOME/Library/KeyBindings

echo '{

/* Remap Home / End keys to be correct */

"\UF729" = "moveToBeginningOfLine:"; /* Home */

"\UF72B" = "moveToEndOfLine:"; /* End */

"$\UF729" = "moveToBeginningOfLineAndModifySelection:"; /* Shift + Home */

"$\UF72B" = "moveToEndOfLineAndModifySelection:"; /* Shift + End */

"^\UF729" = "moveToBeginningOfDocument:"; /* Ctrl + Home */

"^\UF72B" = "moveToEndOfDocument:"; /* Ctrl + End */

"$^\UF729" = "moveToBeginningOfDocumentAndModifySelection:"; /* Shift + Ctrl + Home */

"$^\UF72B" = "moveToEndOfDocumentAndModifySelection:"; /* Shift + Ctrl + End */

}' > $HOME/Library/KeyBindings/DefaultKeyBinding.dict

Issue

MacBook Pro running 2 external screens via DisplayLink Manager enabled USB dock doesn't play videos in web browsers (Chrome and Edge). The sound is played normally, but videos only display a black screen.

Issue

MacBook Air with macOS 10.11 (El Capitan) Apple photos app displays preview thumbnails for all photos, but some photos do not open in full view when double-clicked. Instead of a photo, a grey exclamation mark is displayed. On a closer look it became clear that only HEIC format files were affected, JPGs were opening just fine.

Apple photos exclamation mark

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Mac Mini M2 Pro with three Apple Studio Displays

Remap Home and End key behaviour on a Mac

DisplayLink Manager - Black screen instead of videos

Issue

Apple photos displays exclamation mark instead on HEIC images

Issue