Problem with GIMP plugin

Hi! My laptop is a framework 13 kit with AMD and mid range options. I’m running Ubuntu desktop 24.04.1 LTS upgraded from the last LTS I think. Framework recommended a specific kernel which I was prompted to update once in a while but have not been since the upgrade.

I’m running GIMP 2.10 with the BIMP plugin. When I first attempted to install BIMP as an admin I got an error, so I installed locally instead but it wasn’t showing up in the GIMP menus so I uninstalled GIMP, reinstalled, and ran the BIMP installation as admin again; this time it worked. And BIMP worked very well (aside from a tendency to crash if anything else was running) for the last couple weeks.

On Monday I tried to run a color correction with an exported color curves file, and BIMP applied the value changes, but not the other channels (blue being most noticeably unchanged). I took a peek in the file, and although I’m not totally familiar with the syntax of the settings file, I can tell that the chain of zeroes at the front of the blue channel sample set corresponds with my nixing low end blue channel input, and the same file when imported into the normal GIMP curves tool produces a nice warm orange image.

In BIMP the image remains very blue.

I’ve tried mixing things up to see if it’s a temporary setting somewhere that got stuck (like sometimes when I index an image, undo, and then immediately re-index with a different palette size, the colors get confused about where they should be) but no luck. I tried uninstalling and reinstalling GIMP, no change. This time BIMP stuck around, perhaps because it’s been installed as admin this time?

I can find BIMP in /lib/gimp/2.0/plug-ins but can’t delete it in the GUI (read-only) and am unfamiliar with the process for doing so in the terminal.

Suggestions? If this comes down to obliterating all signs of GIMP from my system, should I try the flatpak version? I’ve heard different things about whether or not BIMP works with flatpak GIMP.

Thanks!

Updates: I’ve successfully uninstalled and reinstalled BIMP, but the problem persists. I checked using my old curve settings files and it turns out I can still make images MORE blue, just not LESS blue. It still may be a problem reading blue channel changes, but pulling down the red and green channels definitely still works.

More updates: Pulling blue out DOES still work, but the effects in BIMP are now totally different than the effects in GIMP and I can no longer use the GIMP function as a preview for what the BIMP function will do, it’s more of a guess and check thing! I don’t know.

How exactly did you install BIMP ? Seems it is only available as source code for linux …

Yes I followed the instructions on github.

If you kept the source directory around you should be able to call make uninstall in there to remove the plugin.

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am I doing this right?

Yes, but it seems it isn’t installed where the installation script expects it …

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Oh the folder is called 2.0 and not 2.10, how do I fix that? I can’t just rename it, probably to stop that from messing up a bunch of other stuff.

Well, you have the commands the uninstall script would run, you can just run them manually with the correct path and it should be fine (in fact i think only using the first rm line is sufficient, it will remove the whole bimp dir, not sure what they expect the second one to do since the toplevel dir will be gone already)

BIMP successfully uninstalled and reinstalled! It is still not performing curve operations correctly.

Probably time to report it here:

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Thanks! What gets me is it worked perfectly for two weeks. I made obvious batch changes to the blue channel on another set of images just fine.