Unix & Linux Asked on December 31, 2021
I’m running CentOS 7 on a Dell laptop. The native keyboard works correctly, but my Logitech MX Keys keyboard is sending some incorrect modifiers:
Default xbkmap settings:
$ setxkbmap -query
rules: evdev
model: pc105+inet
layout: us,us
variant: ,
options: terminate:ctrl_alt_bksp
I tried using options to fix the problem:
$ setxkbmap -option altwin:swap_alt_win
$ setxkbmap -query
rules: evdev
model: pc105+inet
layout: us,us
variant: ,
options: terminate:ctrl_alt_bksp,altwin:swap_alt_win
This fixes the left modifiers and R ALT, but now:
So I took a stab at combining another swap option:
$ setxkbmap -option ctrl:swap_rwin_rctl
$ setxkbmap -query
rules: evdev
model: pc105+inet
layout: us,us
variant: ,
options: terminate:ctrl_alt_bksp,altwin:swap_alt_win,ctrl:swap_rwin_rctl
But that made it worse:
I looked through the options at /usr/share/X11/xkb/rules/evdev.lst
, but can’t find any that address my particular situation.
I’d prefer a persistent solution, but I’m willing to add it to my startup scripts if need be.
I don’t use the native keyboard, so I’m ok with a solution that breaks it.
JdeBP's comment led me to Logitech's setup instruction for MX Keys, which indicate Fn+O for Mac and Fn+P for Windows/Linux/Chrome. I recall taking the current Logitech Unifying Adapter from a MacBook, so I probably previously configured it for that and forgot.
I cleared all of my previous Xkb options and set the keyboard to Windows/Linux/Chrome mode. This fixed all of the keys, even after a reboot.
From what I can tell, these OS-specific configurations are tied individually to each of the 3 preset connection keys. When I was using the keyboard on both Windows and Mac machines, I never recall having to repeat the OS-specific keystrokes. This is likely why I forgot about the feature.
Answered by Shawn on December 31, 2021
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