Unintended “sticky” Cmd modifier

[tjanson]

Occasionally my (left) Cmd key “sticks”, i.e., behaves as though it is pressed even though it is not. Pressing it again “releases” it.

I haven’t noticed a pattern regarding what exactly triggers it, in fact I’m not sure that this is due to Karabiner Elements Neo. But I never had the issue when using Karabiner, so it seems a likely suspect.

Mainly I’m posting to see if anyone else has noticed this, to confirm my suspicions.

[jgosmann]

I never experienced that. Is that with the tab or with the neo2-layer4 branch?

[tjanson]

I’m using the tab branch. (I can’t recall whether it ever happened with the main branch.)

This happens once every couple of hours (when I’m typing a lot). Maybe some (accidental) key combination triggers it. I have no idea yet.

[jgosmann]

The tab branch is definitely a bit more complex, so the likelihood for such a bug is higher. But I'm also still using that branch without experiencing the issue.

[tjanson]

Today I encountered a different variation of this bug: Previously, the Cmd modifier got unstuck when actually pressing it. Right now, it is stuck permanently.

Also, I noticed that the Cmd is only applied to mouseclicks (and scroll gestures; both internal touchpad and external USB mice) for some reason.

Here’s a screenshot, mainly intended to convince myself that I’m not going insane.

I did not press either Cmd key. Notice the modifier flag applied to the mouseclick only.

[ThomasR]

Same issue here, with the neo2-layer4 branch. It is not reproducible. I noticed that it sometimes happens after pressing Cmd+W for closing a browser tab. Pressing Cmd again does unstick it.

[jgosmann]

Neo2 can now be used with the official upstream version of Karabiner-Elements. Just import and activate the required rules. Hopefully, that will resolve the issue.