MacOS – Two external keyboards of the same type have different mappings

keyboardmacos

I use the Logitech K750 on my MBP at work and also bought the keyboard for myself to work at home with the same laptop (German PC layout!).
The problem is that one of the keyboards will always have the ^ and < keys swapped:

sudo rm /Library/Preferences/com.apple.keyboardtype.plist to reset the mapping
Plug in the K750 at work, select mapping: everything works fine
Come home, plug in K750, select mapping: ^ and < keys are swapped.
sudo rm /Library/Preferences/com.apple.keyboardtype.plist to reset the mapping
Plug in K750 again, select mapping: everything is fine
Come to work, plug in K750, select mapping: ^ and < keys are swapped.
Start from 1.

The behavior is super annoying and I can't get my head wrapped around what is causing the issue because it's the exact same keyboard-type.
What is wrong with my keyboards?

Best Answer

I'm not familiar with what you are trying, but I've had success with Karabiner for device-specific remaps, it's a little complicated to use but they have a manual on their site

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MacOS – Replaced Macbook Pro keyboard with US-layout, now cannot type ~/` on external keyboard

One possibility is to use keyremap4macbook, but this doesn't change the firmware keyboard layout and I don't like fiddling around with such tools if not necessary.

Change keyboard layout

MacOS – Control not working in iTerm 2 when using Programmer Dvorak keyboard layout

Edit: There is now a new version of Programmer Dvorak that works with key combinations like ⌃A, so the instructions below are no longer needed.

◊ Option modifier is currently non-functional. Also, you cannot replace a default Roman layout with this one. Control keys should now be functional.

Option worked everywhere I tested, so non-functional could just mean that states under option don't output non-ASCII characters. If you want to disable all other input sources, you can edit the HIToolBox plist.

Instructions for older versions of Programmer Dvorak:

Open /Library/Keyboard Layouts/Programmer Dvorak.bundle/Contents/Resources/Programmer Dvorak.keylayout

And add this to modifierMap:

<keyMapSelect mapIndex="3">
  <modifier keys="control anyOption? anyShift?"/>
</keyMapSelect>

Add this to keyMapSet:

<keyMap index="3">
  <key code="0" output="&#x0000;"/>
  <key code="1" output="&#x0000;"/>
  <key code="2" output="&#x0000;"/>
  <key code="3" output="&#x0000;"/>
  <key code="4" output="&#x0000;"/>
  <key code="5" output="&#x0000;"/>
  <key code="6" output="&#x0000;"/>
  <key code="7" output="&#x0000;"/>
  <key code="8" output="&#x0000;"/>
  <key code="9" output="&#x0000;"/>
  <key code="10" output="&#x0000;"/>
  <key code="11" output="&#x0000;"/>
  <key code="12" output="&#x0000;"/>
  <key code="13" output="&#x0000;"/>
  <key code="14" output="&#x0000;"/>
  <key code="15" output="&#x0000;"/>
  <key code="16" output="&#x0000;"/>
  <key code="17" output="&#x0000;"/>
  <key code="18" output="&#x0000;"/>
  <key code="19" output="&#x0000;"/>
  <key code="20" output="&#x0000;"/>
  <key code="21" output="&#x0000;"/>
  <key code="22" output="&#x0000;"/>
  <key code="23" output="&#x0000;"/>
  <key code="24" output="&#x0000;"/>
  <key code="25" output="&#x0000;"/>
  <key code="26" output="&#x0000;"/>
  <key code="27" output="&#x0000;"/>
  <key code="28" output="&#x0000;"/>
  <key code="29" output="&#x0000;"/>
  <key code="30" output="&#x0000;"/>
  <key code="31" output="&#x0000;"/>
  <key code="32" output="&#x0000;"/>
  <key code="33" output="&#x0000;"/>
  <key code="34" output="&#x0000;"/>
  <key code="35" output="&#x0000;"/>
  <key code="36" output="&#x0000;"/>
  <key code="37" output="&#x0000;"/>
  <key code="38" output="&#x0000;"/>
  <key code="39" output="&#x0000;"/>
  <key code="40" output="&#x0000;"/>
  <key code="41" output="&#x0000;"/>
  <key code="42" output="&#x0000;"/>
  <key code="43" output="&#x0000;"/>
  <key code="44" output="&#x0000;"/>
  <key code="45" output="&#x0000;"/>
  <key code="46" output="&#x0000;"/>
  <key code="47" output="&#x0000;"/>
  <key code="48" output="&#x0000;"/>
  <key code="49" output="&#x0000;"/>
  <key code="50" output="&#x0000;"/>
  <key code="51" output="&#x0000;"/>
  <key code="52" output="&#x0000;"/>
  <key code="53" output="&#x0000;"/>
  <key code="64" output="&#x0000;"/>
  <key code="65" output="&#x0000;"/>
  <key code="66" output="&#x0000;"/>
  <key code="67" output="&#x0000;"/>
  <key code="69" output="&#x0000;"/>
  <key code="70" output="&#x0000;"/>
  <key code="71" output="&#x0000;"/>
  <key code="72" output="&#x0000;"/>
  <key code="75" output="&#x0000;"/>
  <key code="76" output="&#x0000;"/>
  <key code="77" output="&#x0000;"/>
  <key code="78" output="&#x0000;"/>
  <key code="79" output="&#x0000;"/>
  <key code="80" output="&#x0000;"/>
  <key code="81" output="&#x0000;"/>
  <key code="82" output="&#x0000;"/>
  <key code="83" output="&#x0000;"/>
  <key code="84" output="&#x0000;"/>
  <key code="85" output="&#x0000;"/>
  <key code="86" output="&#x0000;"/>
  <key code="87" output="&#x0000;"/>
  <key code="88" output="&#x0000;"/>
  <key code="89" output="&#x0000;"/>
  <key code="91" output="&#x0000;"/>
  <key code="92" output="&#x0000;"/>
  <key code="96" output="&#x0000;"/>
  <key code="97" output="&#x0000;"/>
  <key code="98" output="&#x0000;"/>
  <key code="99" output="&#x0000;"/>
  <key code="100" output="&#x0000;"/>
  <key code="101" output="&#x0000;"/>
  <key code="102" output="&#x0000;"/>
  <key code="103" output="&#x0000;"/>
  <key code="104" output="&#x0000;"/>
  <key code="105" output="&#x0000;"/>
  <key code="106" output="&#x0000;"/>
  <key code="107" output="&#x0000;"/>
  <key code="108" output="&#x0000;"/>
  <key code="109" output="&#x0000;"/>
  <key code="110" output="&#x0000;"/>
  <key code="111" output="&#x0000;"/>
  <key code="112" output="&#x0000;"/>
  <key code="113" output="&#x0000;"/>
  <key code="114" output="&#x0000;"/>
  <key code="115" output="&#x0000;"/>
  <key code="116" output="&#x0000;"/>
  <key code="117" output="&#x0000;"/>
  <key code="118" output="&#x0000;"/>
  <key code="119" output="&#x0000;"/>
  <key code="120" output="&#x0000;"/>
  <key code="121" output="&#x0000;"/>
  <key code="122" output="&#x0000;"/>
  <key code="123" output="&#x0000;"/>
  <key code="124" output="&#x0000;"/>
  <key code="125" output="&#x0000;"/>
  <key code="126" output="&#x0000;"/>
</keyMap>

Run sudo touch /Library/Keyboard\ Layouts/ and log out and back in

Best Answer

Related Solutions

MacOS – Replaced Macbook Pro keyboard with US-layout, now cannot type ~/` on external keyboard

MacOS – Control not working in iTerm 2 when using Programmer Dvorak keyboard layout

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