Look into buggy behavior of super key

[creasty]

What

Occasionally "S" become unable to type.

It shows "Accents Popup" like the fig below, but alone without typed letter.

Disabling the popup feature as follow doesn't solve problem, supposedly it caused by its implementation, especially in the state management.

How to disable the character accent menu in El Capitan
https://discussions.apple.com/thread/7455939?start=0&tstart=0

defaults write -g ApplePressAndHoldEnabled -bool false

[creasty]

Looks like S+J and S+K don't work on Sierra...

[creasty]

Looks like S+J and S+K don't work on Sierra...

Suspecting maskSecondaryFn. Will test tmrw

[creasty]

Occasionally "S" become unable to type.

Seemingly slowing key repeat interval solved the problem.

Apart from this, frequently, a letter before "s" duplicates after the "s".
e.g., "creasty" becomes "creasaty"

[creasty]

Looks like S+J and S+K don't work on Sierra...
Suspecting maskSecondaryFn. Will test tmrw

I was right. Fixed.

[creasty]

ceasat

2017-06-03 01:17:34.340133+0900 keyboard[5462:2821059] c down
2017-06-03 01:17:34.456173+0900 keyboard[5462:2821059] c up
2017-06-03 01:17:34.568670+0900 keyboard[5462:2821059] r down
2017-06-03 01:17:34.647992+0900 keyboard[5462:2821059] e down
2017-06-03 01:17:34.688805+0900 keyboard[5462:2821059] r up
2017-06-03 01:17:34.695958+0900 keyboard[5462:2821059] a down
2017-06-03 01:17:34.759908+0900 keyboard[5462:2821059] e up
2017-06-03 01:17:34.760311+0900 keyboard[5462:2821059] s down
2017-06-03 01:17:34.761725+0900 keyboard[5462:2821059] state = activated
2017-06-03 01:17:34.840006+0900 keyboard[5462:2821059] a up
2017-06-03 01:17:34.840122+0900 keyboard[5462:2821059] state = enabled
2017-06-03 01:17:34.840198+0900 keyboard[5462:2821059] state = used
2017-06-03 01:17:34.895929+0900 keyboard[5462:2821059] s up
2017-06-03 01:17:34.899221+0900 keyboard[5462:2821059] state = inactive
2017-06-03 01:17:34.937598+0900 keyboard[5462:2821059] t down
2017-06-03 01:17:35.023915+0900 keyboard[5462:2821059] t up

[creasty]

• a down
• s down
• a up
• s up

will produce asa

---

2017-06-03 02:56:43.191882+0900 keyboard[25209:2978414] a down
2017-06-03 02:56:43.271875+0900 keyboard[25209:2978414] s down
2017-06-03 02:56:43.271981+0900 keyboard[25209:2978414] state = activated
2017-06-03 02:56:43.327712+0900 keyboard[25209:2978414] a up
2017-06-03 02:56:43.327779+0900 keyboard[25209:2978414] state = enabled
2017-06-03 02:56:43.327822+0900 keyboard[25209:2978414] state = used
2017-06-03 02:56:43.359771+0900 keyboard[25209:2978414] s up

[creasty]

Not the case

2017-06-03 02:57:30.513748+0900 keyboard[25209:2978414] a down
2017-06-03 02:57:30.601750+0900 keyboard[25209:2978414] s down
2017-06-03 02:57:30.601842+0900 keyboard[25209:2978414] state = activated
2017-06-03 02:57:30.769950+0900 keyboard[25209:2978414] a up
2017-06-03 02:57:30.770034+0900 keyboard[25209:2978414] state = enabled
2017-06-03 02:57:30.770089+0900 keyboard[25209:2978414] state = used
2017-06-03 02:57:30.805470+0900 keyboard[25209:2978414] s down
2017-06-03 02:57:30.805602+0900 keyboard[25209:2978414] state = activated
2017-06-03 02:57:30.824841+0900 keyboard[25209:2978414] s down
2017-06-03 02:57:30.843564+0900 keyboard[25209:2978414] s down
2017-06-03 02:57:30.860729+0900 keyboard[25209:2978414] s down
2017-06-03 02:57:30.865803+0900 keyboard[25209:2978414] s up

2017-06-03 02:58:06.875195+0900 keyboard[25209:2978414] a down
2017-06-03 02:58:06.987236+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:06.987295+0900 keyboard[25209:2978414] state = activated
2017-06-03 02:58:07.075058+0900 keyboard[25209:2978414] a up
2017-06-03 02:58:07.075127+0900 keyboard[25209:2978414] state = enabled
2017-06-03 02:58:07.075170+0900 keyboard[25209:2978414] state = used
2017-06-03 02:58:07.187494+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.187564+0900 keyboard[25209:2978414] state = activated
2017-06-03 02:58:07.206078+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.223168+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.241822+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.258357+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.278269+0900 keyboard[25209:2978414] s down
2017-06-03 02:58:07.283085+0900 keyboard[25209:2978414] s up
2017-06-03 02:58:07.284407+0900 keyboard[25209:2978414] state = inactive

2017-06-03 03:06:23.735440+0900 keyboard[25699:2986119] a down
2017-06-03 03:06:23.863145+0900 keyboard[25699:2986119] s down
2017-06-03 03:06:23.863236+0900 keyboard[25699:2986119] state = activated
2017-06-03 03:06:23.895366+0900 keyboard[25699:2986119] a up
2017-06-03 03:06:23.895450+0900 keyboard[25699:2986119] state = disabled
2017-06-03 03:06:24.007241+0900 keyboard[25699:2986119] s up
2017-06-03 03:06:24.007323+0900 keyboard[25699:2986119] state = inactive