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from my Desktop (Manjaro-Linux) I open a ssh session (with X11-forwarding) to the Arch Linux machine. There I call meld from the command line (after setting the DISPLAY variable and configuring that xauth stuff).
The meld window opens in the lower right corner of my desktop and cannot be moved or resized.
If there is already a window in the lower right corner of the screen, the meld window is placed to the left of it. Strangely, all other functions work. For example, the menu can be called using the mouse and closing the window using (x) also works - only the size and position of the window can neither be changed with the mouse, nor with the keyboard.
This works very well for machines running other Linux distributions (e.g. Debian, PiOS) and it used to work with Arch Linux as well.
I also tried other applications (e.g.) geany, because I thought this could be related to gtk3 - but geany works as expected.
Another thought was, this could be related to the window manager. I use LXDE and this uses openbox. But when double checking the issue with another VM, that runs another desktop environment (LXQT), the issue could not be reproduced, although LXQT uses openbox too.
Any ideas?
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It sounds like you are experiencing an issue with the window manager not properly handling the window placement and size of the meld window. This could be caused by a number of things, such as a conflict with another window manager setting, a bug in the window manager, or an issue with the X11 forwarding.
One thing you could try is to reset the window manager configuration to its default settings and see if that fixes the issue. To do this, you can try the following steps:
Close all open windows and log out of your desktop environment.
Open a terminal and enter the following command to backup your current window manager configuration:
cp -R ~/.config/openbox ~/.config/openbox.bak
Next, enter the following command to delete the current window manager configuration:
rm -rf ~/.config/openbox
Log back in to your desktop environment and see if the issue with meld has been resolved.
If resetting the window manager configuration does not fix the issue, you could also try using a different window manager to see if that resolves the problem. Alternatively, you could try using a different application to compare files, such as diff, to see if the issue is specific to meld or if it affects other applications as well.
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