Something is using a keybinding, how to find it?

tazjin · 2014-02-21 10:00:10

Hej!

I have my capslock key remapped to be Hyper and use it as the main modifier key in Xmonad. This way I can do Hyper + [1..9] to switch to workspaces 1-9, and Hyper + Super + [1..9] to move a window to a specific workspace.

This works fine except for moving a window to workspace number 2 (Hyper + Super + 2). The keypress for the 2 never gets registered by Xmonad. When I open xev and check what it receives, all the normal combinations, like Hyper + Super + 3 for example, show up fine - when I press Hyper and Super and then 2 it never seems to receive the KeyPress event for the 2-key.

I then assumed that maybe this particular keybinding is used for something in my DE (Xfce 4), but I went through all the keybindings I could find in settings and didn't see anything.

Is there a way for me to check which application grabs this key combination when I press it?

Awebb · 2014-02-21 15:04:34

Use xev to see whether this combination is being registered as something else.

tazjin · 2014-02-22 21:58:41

As mentioned it doesn't show up in xev at all, the first two keys (Hyper + Super) do, but the 2 never registers. Interestingly enough this doesn't happen with an external keyboard which makes it even stranger.

milouse · 2022-12-20 14:11:24

Sorry to up an old topic, but I’m currently in the same situation (since a while to be precise). To be extra precise, not exactly the same situation, but almost: I also try to attach the keybinding Super+2 to switch to second workspace (as you may notice, I don’t use the hyper key). Result is the same: super + 1, 3, 4… work as expected, but super + 2 fails.

The only usefull debug data I can tell are:

- it only occurs (at least) on Gnome and MATE (thus seems to be related to old gnomish thing?). It does not occurs on i3. Interesting enough, it does not occurs on pantheon too (yet built arount gnome technologies).
- for me it breaks both on laptop keyboard or external keyboard
- I don’t think it is really related to "2", but more with the keycode 11, as I reproduce the problem whatever keyboard map I’m using (bepo, azerty, qwerty…). Thus I’d bet on something relatively deep as no know keybindings software I know use keycode…

If any one may have any interesting idea it would be great… I’m not even sure how I can search for a solution on the web

Awebb · 2022-12-20 14:16:20

Create a new thread and link to this thread if you want to connect relevant information, because after almost 9 years, things might have changed dramatically

seth · 2022-12-20 14:22:45

sleep 3; xdotool key "XF86LogGrabInfo"

The press the shortcut until after xdotool fired.
Active and passive grabs and the grabbing client will be in your xorg log, super + f2 should be the active one.

Because of "gnome": https://unix.stackexchange.com/question … d-in-gnome

Arch Linux

#1 2014-02-21 10:00:10

Something is using a keybinding, how to find it?

#2 2014-02-21 15:04:34

Re: Something is using a keybinding, how to find it?

#3 2014-02-22 21:58:41

Re: Something is using a keybinding, how to find it?

#4 2022-12-20 14:11:24

Re: Something is using a keybinding, how to find it?

#5 2022-12-20 14:16:20

Re: Something is using a keybinding, how to find it?

#6 2022-12-20 14:22:45

Re: Something is using a keybinding, how to find it?

Board footer