Gimp-Forum.net

The color editor tool in GIMP 2.10.10 has begun freezing. I can set a new color and use the RGB sliders without a problem, but when I use the L slider GIMP freezes. The first time that happened, I was horrified to realize I'd worked at least an hour on a new project without a single save. I know better than that! But rather than lose all that work by using Task Manager to close the app, I did something else for an hour. By that time GIMP had sorted itself out.

This has happened a couple more times, and once it freezes, it will always freeze on that function. I have no idea why. I've routinely used that function in the past. 

Fiddling with it just now to see if there's a performance difference between foreground and background, I discovered that the new color is not registering in the palette at the bottom of that tool as it has always done. ??

[attachment=2904]

The non grayscale colors above are all custom colors that registered yesterday.

AHA! It seems to jam in Background. And when I open Task Manager to close it, I see

[attachment=2905]

Closing just the Program Plug-In does not help. It is reliably stalling with the Background Color function when using the L slider. I'd never tried the bottom sliders. They work fine with Foreground, but L, C, and h all stall out on Background.

For now, I'll swap colors and use Foreground for all color manipulation, but where are my swatches? I rely on those! Why is this behavior change occurring when I haven't changed any setting, installed any plug-ins, or whatever since before these problems began?

UPDATE: It's not just the slider. Changing the numbers on those three functions in Background Color by keyboard or arrow also freezes GIMP.

I can reproduce that but only under circumstances not mentioned in your post.

1. Why two instances of Gimp? Running Gimp with the -n switch is not unknown but is unusual.

2. Are you running in different desktops? While running multiple desktops has been around a long time in linux, only Win 10 has it as standard (used to be a separate application)



On desktop 2 change FG and L slider is working. Swap to desktop 1 and use it then I can get a crash.

Might be a bug in Gimp or it might be a bug in Windows.
I suggest a review of your workflow. Try to get the crash on your computer using just a single instance of Gimp.

edit:
I can reproduce that in Linux kubuntu 18.04 Gimp 2.10.10 and back to Gimp 2.10.10 in a Win10 VM
Using the -n switch or not. One Gimp or 2 instance. Eventually using the L slider causes a freeze. Might not happen at first but does after repeated use.

You could try reporting as a bug.

Thanks Rich. I noticed that double instance and started to ask about that, but it dropped out of sight while I was focused on sliders. It's not something I did on purpose, and I don't recall noticing it earlier. A few previous times I've killed a GNU plugin, which has shown at the top level right under GNU Image Manipulation Program in Task Manager, not nested as it is currently. How do I turn that -n switch off?

That may also help with the palette glitch, though for whatever reason, that's working again, without even restarting GIMP. Who knows?