Cannot type symbols on dead keys (e.g., to write ', ", or ^)

Question

Andreas 2023-3-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1933955-cannot-type-symbols-on-dead-keys-e-g-to-write-or

回答： Daniel 2024-6-16

Using MATLAB R2022b Update 5 on Fedora Linux 37, but also confirmed not working on Ubuntu 22.04. I cannot write symbols that are on "dead keys", such as ', ", or ^. Normally, I would press the key and then space and the character appears, but now, only a space is inserted. It does work when switching to a keyboard layout that does not contain such dead keys (e.g., US International). Is this a bug or a problem on my side? I could not find anything about this issue.

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Antonio Sala 2023-9-25

Still present in 2023b in Ubuntu 22.04.

Franklin Ronald 2024-2-27

Same issue in R2023B running at AlmaLinux 9. But, it's not a "linux" issue, It's obvious that it's a Matlab issue.

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Answer 1

Tommi Heikkilä 2023-4-26

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https://ww2.mathworks.cn/matlabcentral/answers/1933955-cannot-type-symbols-on-dead-keys-e-g-to-write-or#answer_1223399

I had the same issue with MATLAB R2023a, Finnish keyboard and Ubuntu 22.04. The workaround for the issue was the same as here: https://ubuntuforums.org/showthread.php?t=1911860

In Ubuntu settings I set the keyboard to 'Finnish (classic, no dead keys)' instead of 'Finnish' and now the keys work fine in Matlab.

Of course the behaviour is also slightly different: the symbols '¨ ^ ~' are typed straight away instead of being able to write accented characters but to me it's no big deal.

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Andreas 2023-4-26

That's also the solution I used (select a keyboard layout without dead keys). Still, it'd be nice if this were fixed.

Tommi Heikkilä 2023-4-26

Yes, there is definitely something wrong with how Matlab or Ubuntu currently treats the dead keys because they used to work just fine. I just wanted to offer a workaround / bandaid solution because it is a super annoying problem.

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Answer 2

Cris LaPierre 2023-3-26

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1933955-cannot-type-symbols-on-dead-keys-e-g-to-write-or#answer_1201329

If those keys are only not working in MATLAB, please report this as a bug to customer support: https://www.mathworks.com/support/contact_us.html

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Antonio Sala 2024-1-14

This bug seems to have been resolved in 24a prerelease... Well it's still unreleased/beta so who knows if fixing something else will break that again but, for the moment being, there is hope in the horizon.

Ramz 2024-5-29

编辑：Ramz 2024-5-29

I tried the MATLAB 24a pre release and the 24a official release but the problem was still there for me on Ubuntu 22.04. With a normal (German) keyboard, either "normal" keyboard settings and also "no dead key" settings all result in some weird state change that after a bracket { or [ i can not continue typing unless i press escape or click on the cursor. It is really annoying, disturbing the workflow. Also If by accident the esc key is pressed twice or to long, all previously typed text on the commandline dissapears. Later i found that this could be solved for me by using: com.mathworks.desktop.mnemonics.MnemonicsManagers.get.disable

The problem was that to write brackets and other characters the Alt Gr key was necessary, but this was some how assigned to other short cuts, not visible in the short cut menu.

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