Codebrowser pop-up opened in background - blocking GUI

[karsten-burger]

Hello, I am using ghidra 11.4.2 on Fedora 42 with Gnome.

There is a quite annoying issue: often a popup is opened in background, meaning that the GUI is frozen while I have no means of accessing the popup window or continuing with the gui.

How to reproduce:

open a codebrowser project
open memory manager, select a memory block
press button to move a memory block

The popup to fill-in the new address to move to seems to be open, but invisible, the memory manager window is greyed-out, GUI is frozen.
Switching the working area to a different one and switching back has sometimes resolved the issue in the past, or restarting ghidra.

[dragonmacher]

This should not be happening. Typically when we see reports like this, it is on a Linux variant. Usually the issue has to do with how the JVM / OS handle modal dialog interaction. It is possible that we could hack a workaround, but, unfortunately, if we cannot reproduce the issue, then creating a solution is difficult.

[karsten-burger]

Tank you, so it is a bug of the Linux release, I understand.

[dragonmacher]

It could be in the JVM code that you are using. The JVM interacts with the OS to create and manage modal dialogs. I would expect that most Linux distros do not have this issue. You could try getting a different Java implementation to see if that fixes the issue. That would help point out whether the issue is the OS or the JVM.