Deleted the body of the post as largely irrelevant for the previous post.
The usual question. Was working, not working now, what changed ?
With the stock ubuntu 22.04 you can get un-attended upgrades whether you want them or not.
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You might get additional information if you unpack the appimage
Put the appimage launcher gimp-mathmap-22-04jammy.AppImage in a new folder
From a terminal start it with the --appimage-extract switch
That creates a new folder squashfs-root containing a file AppRun
Start that from a terminal dot-slash ./AppRun
It should start Gimp but if it does not there might be some extra information.
I have this as a permanent setup for kubuntu 22.04 / Gimp 2.10.32 from PPA . Made a .desktop for that AppRun to launch Gimp.
The usual question. Was working, not working now, what changed ?
With the stock ubuntu 22.04 you can get un-attended upgrades whether you want them or not.
--- more edits---
You might get additional information if you unpack the appimage
Put the appimage launcher gimp-mathmap-22-04jammy.AppImage in a new folder
From a terminal start it with the --appimage-extract switch
Code:
./gimp-mathmap-22-04jammy.AppImage --appimage-extract
That creates a new folder squashfs-root containing a file AppRun
Start that from a terminal dot-slash ./AppRun
It should start Gimp but if it does not there might be some extra information.
I have this as a permanent setup for kubuntu 22.04 / Gimp 2.10.32 from PPA . Made a .desktop for that AppRun to launch Gimp.