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Partack
Asked: 2019-12-01 22:35:15 +0800 CST

" ] " and " [ " are not being mapped properly with xsetwacom

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i'm trying to map my drawing tablet buttons and the command to do that for my particular scenario is:

xsetwacom --set 'Tablet Monitor Pad pad' Button 1 "key a"
xsetwacom --set 'Tablet Monitor Pad pad' Button 2 "key b"

The output would be:

  • pressing button 1 > types the letter A,
  • button 2 > types the letter B, etc.

And this works great, no problems. But when i try to set "key [" or "key ]" the output i get is a key press of the number 8 or 9 respectively.

I tried the command XEV to find the keycode:

XEV screenshot

And it turns out "bracketright" is a thing, but setting this does exactly the same thing as ] (outputs the number 9 instead of ])

i even tried the keycode (keysym?) of 0x5d same result. (outputs 9)

I'm not sure what to try next.. anyone have any ideas?

I'm using Ubuntu 18.04 with the DIGImend drivers (Which i have installed and are working) (my tablet is a Huion H640P if it helps..)

OH, i just thought of something that may help, my keyboard layout is English (UK). Dunno if that might mess with anything? I feel like the XEV would have caught that regardless, but i feel like it's worth mentioning.

Edit: Turns out it does have something to do with the keyboard language, I set my keyboard to US and the output of [ and ] work perfectly.

I checked XEV for the keycode and it's the same as before.

Is this a bug? and should i report it? if so, then where?

And is there a way to check the actual binding/keycode for [ and ] on the British keyboard layout?

shortcut-keys xev 18.04 keycodes

1 Answers

  1. Best Answer

    Alright! answering my own question, I found the solution!

    I found a similar question to mine over at superuser. One of the answers suggested using Alt-Gr and 8 or 9 (Which, just so happens to be another funky way of typing [ or ] )

    ALT_R was not accepted by xsetwacom, it would output:

    Warning: unable to map 'Alt_R' to a keycode.

    So i used XEV to figure out what the mapping was for Alt-Gr on my keyboard, it told me it was:

    keycode 108 (keysym 0xfe03, ISO_Level3_Shift)

    so i set my buttons with the lines:

    xsetwacom --set 'Tablet Monitor Pad pad' Button 2 "key +ISO_Level3_Shift +9"
xsetwacom --set 'Tablet Monitor Pad pad' Button 3 "key +ISO_Level3_Shift +8"

    And wouldn't you know it, it worked. pressing my tablet buttons types [ or ]. I tested it in Krita and it does exactly as expected and changes the brush size.

    I spent two days looking for this answer. I hope someone who has the same problem stumbles across this answer and it helps them too.

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