The text is not displayed on Debian 10 and LMDE 4.

[kuzyaka62]

Installed KDiskMark on Debian 10, Linux Mint Debian Edition 4 and on Debian 11.
Everything went fine on Debian 11
https://i.ibb.co/qnkmmg4/d11.png
and on Debian 10 and Linux Mint Debian Edition 4, a form without text was launched.
https://i.ibb.co/7YhZ0qq/d10.png
Is it treated somehow?

[JonMagon]

Try running it from a terminal and see the output. I don't think the cause is in the application at all.

[kuzyaka62]

When starting KDiskMark in the terminal, I received such a warning.
Qt: Session management error: None of the authentication protocols specified are supported

How can this be fixed?

[JonMagon]

Probably an dependencies problem. How did you install kdiskmark? If was a .deb package, it is not designed for Debian, there is an AppImage for it.

[kuzyaka62]

Если можно по русски.
KDiskMark я устанавливал через snap:
sudo snap install kdiskmark

[kuzyaka62]

If you run on LMDE 4 or Debian 10 KDiskMark-2.2.1-fio-3.27-x86_64.AppImage, then there are no problems with displaying the text.
However, there was another problem, KDiskMark-2.2.1-fio-3.27-x86_64.AppImage does not switch the interface language.
Is this how it should be?

[JonMagon]

If you run on LMDE 4 or Debian 10 KDiskMark-2.2.1-fio-3.27-x86_64.AppImage, then there are no problems with displaying the text. However, there was another problem, KDiskMark-2.2.1-fio-3.27-x86_64.AppImage does not switch the interface language. Is this how it should be?

It shouldn't be that way. I can confirm it, I did not notice before because of the installed package in the system. I need time to figure out what the cause is and fix it.

[JonMagon]

If you run on LMDE 4 or Debian 10 KDiskMark-2.2.1-fio-3.27-x86_64.AppImage, then there are no problems with displaying the text. However, there was another problem, KDiskMark-2.2.1-fio-3.27-x86_64.AppImage does not switch the interface language. Is this how it should be?

Fixed in https://github.com/JonMagon/KDiskMark/releases/download/2.2.1/KDiskMark-2.2.1-2-fio-3.27-x86_64.AppImage