Arch Linux

ATnpG

Member

Registered: 2025-06-26

Posts: 9

KanjiTomo & constant screen-share popups

I'm having a weird issue that I can't seem to be able to find any results for on google.

When I run kanjitomo (on kde 6, wayland), every time I click on a different window I get two popups in a row asking me which screen to share. I assume this is caused by Wayland. For example, if I click on firefox, I get those two popups. I confirm I want to share the entire workspace (twice!), then I click on a terminal, and again two more popups show up. I click back to firefox, and TWO MORE POPUPS SHOW UP.

Does anyone know how I to debug this and prevent it from happening? There's nothing useful in the terminal that I run kanjitomo from. I assume I need to whitelist it somewhere, but given that I get no results from this specific error, I don't even know where to start...

ntb314

Member

Registered: 2025-02-13

Posts: 16

Re: KanjiTomo & constant screen-share popups

Hey ATnpG,

You're right, this is likely a Wayland + KDE + Java issue. KanjiTomo uses Java's AWT for screen capture, which triggers the KDE screen sharing portal every time it tries to capture a new window. Afaik on Wayland, there's no global screen access, every capture must be explicitly approved.

Here are two possible solutions:

-Use X11 instead of Wayland as a workaround, this should bypass the portal entirely.

-Try setting QT_QPA_PLATFORM=wayland and XDG_CURRENT_DESKTOP=KDE explicitly, and check if xdg-desktop-portal or its KDE backend (xdg-desktop-portal-kde) is misbehaving.

Also, make sure your Java version is Wayland-aware (e.g., OpenJDK 17 or higher).

Hope this helped!

ATnpG

Member

Registered: 2025-06-26

Posts: 9

Re: KanjiTomo & constant screen-share popups

While those variables fixed the constant popups, unfortunately even with them Kanjitomo does not seem to be able to use its OCR functionality. I can only get it to work if I use the "zoom" window, which is really unwieldy.
Is it just me, or is it broken? And if so, is there no similar software for linux?

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 12,884

Website

Re: KanjiTomo & constant screen-share popups

Mod note: moving to AUR Issues

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Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,950

Re: KanjiTomo & constant screen-share popups

Kanjitomo hasn't seen updates in years, you're probably better off sticking to X if you want to use it.

https://aur.archlinux.org/packages/normcap is maintained and mentioned as an alternative on several lists.

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ATnpG

Member

Registered: 2025-06-26

Posts: 9

Re: KanjiTomo & constant screen-share popups

Kanjitomo hasn't seen updates in years, you're probably better off sticking to X if you want to use it.

https://aur.archlinux.org/packages/normcap is maintained and mentioned as an alternative on several lists.

This is not even closely comparable. Kanjitomo functions as a dictionary with OCR. Hovering over a kanji shows the kanji itself with possible meanings and readings. normcap is just a nice frontend to tesseract that OCRs something and copies it to a clipboard, it's only half of what Kanjitomo does.