Problems with AppImages.

[teapot]

From https://download.gimp.org/gimp/v3.0/linux/

I find these AppImages work fine here:

    GIMP-3.0.0-aarch64.AppImage
    GIMP-3.0.2-aarch64.AppImage
    GIMP-3.0.4-aarch64.AppImage

But these two later ones suffer the same problems:

    GIMP-3.0.6-aarch64.AppImage
    GIMP-3.2.0-RC1-aarch64.AppImage

When running 3.0.6, the first error printed seems the key one:

    (gimp:12345): Gtk-CRITICAL **: 12:34:56.789:
        _gtk_css_provider_load_named:
        assertion '!g_str_equal (name, DEFAULT_THEME_NAME)' failed

It's repeated often along with lots of subsequent errors.  GIMP's main window appears, but the "welcome" window is small, square, and empty.  It does not respond to events so I can't close it.  Selecting File -> New in the main window has another small, square, empty window appear, like the welcome one, so I can't enter the width, height, etc., to create an image.

I assume some change has happened in how the AppImage has been built so 3.0.4 is happy here, but 3.0.6 isn't.  I'm running each from the same shell window on the same machine, etc., so the system around the AppImage is the same.

Searching found a similar problem with an AppImage for Dolphin which the developers fixed, although the problem wasn't what they first thought.  Perhaps that's useful to those who understand how AppImages are built.  https://github.com/pkgforge-dev/Dolphin-.../issues/20

Is anyone here running 3.0.4 and 3.0.6 AppImages from https://download.gimp.org/gimp/v3.0/linux/ ?  Do you suffer the same, or do they work for you?

Any clues on how to sort this?

[rich2005]

(12-08-2025, 07:01 PM)teapot Wrote: From https://download.gimp.org/gimp/v3.0/linux/
..........snip................
Is anyone here running 3.0.4 and 3.0.6 AppImages from https://download.gimp.org/gimp/v3.0/linux/ ?  Do you suffer the same, or do they work for you?

I do have these archived and they do work ok, but I am AMD/intel CPU not ARM  There is a small change in the Themes between versions. Unpack an appimage from command line using ./filename.appimage --appimage-extract and looking at the themes folder.

   

As far as I know these are not architecture dependent. Maybe you can compare with your version(s).

Gimp first run will try and migrate User settings so the inevitable first stop. Disable ~/.config/GIMP and run 3.0.6 to make a new default version.

Probably you need to report this problem as a bug.