Po Lu [2023-08-16 Wed 09:29] wrote:

> Alexander Prähauser <alexander.praehauser@gmx.at> writes:
>
>> Sorry for the late reply.
>>
>>> Which virtual modifier key have you assigned to the apostrophe 
>>> key?
>>
>> I've made the apostrophe key (AC11 in xkb) a level 3 switch 
>> through
>> the following function:
>>
>>> // The AC11 key (while pressed) chooses the third shift level.
>>> partial modifier_keys
>>> xkb_symbols "ac11_switch" {
>>>   key <AC11> {
>>>     type[Group1]="ONE_LEVEL",
>>>     symbols[Group1] = [ ISO_Level3_Shift ]
>>>   };
>>> };
>>
>> If tapped it sends an F14 signal (which I use in Emacs to 
>> insert math
>> symbols in cdlatex).
>
> I guess I still don't fully understand your XKB configuration. 
> Having
> access to the complete XKB configuration on your X server would 
> be a
> great help to that end.
>
> Would you please run:
>
>   xkbcomp -xkb $DISPLAY
>
> and attach each generated *.xkb file?