sorry I forgot to say that I use Kubuntu 18.04.
@David_Tschumperle do you have any idea what could be the reason for the preview timeout that @s7habo is reporting? Or how to investigate it?
@David_Tschumperle, @Carmelo_DrRaw:
in the G’MIC settings dialog you can set timeout, but it doesn’t work. No matter what value I set, I immediately get timeout message.
Do other settings work, or are all of them ignored?
By the way, I noticed that your GIMP AppImage is much faster than Otto’s ppa or flatpak version. So I prefer to use your AppImage. 
Nice work! 
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sorry for spamming but I’ve just experimented a little bit and I notice that every time I select a filter or LUT from the list, the “Update filters” button becomes active as well. Where does G’MIC get its filters from? Are they stored locally or does he go to the internet every time?
I have now tried all LUTs and except (Expired) all Instant Consumer LUTs work. All Instant Pro LUTs work too. For all others I get timeout.
Notice: I always update filters before I start to work with G’MIC!
I really don’t know for the moment… let’s wait until @David_Tschumperle has a chance to read this messages, I hope he can shed some light!
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I have tried again but for me no lut is working (only seems to work if you don’t choose the preset and leave it to none).
And also grain.
Seems that it is impossible to download preset, maybe to a read only tmp dir for g’mic downloads? Or maybe to g’mic now a bit old version?
I attach a screenshot.
I don’t know if it will make a difference, but the current version is 2.4.5. You have a pre-release version of 2.4.3
Yes but pre 2.4.3 is integrated in the Appimage, i think it isn’t feasible to upgrade without rebuilding the appimage.
@ggc @Bilbo let me have a look later today. The GMIC version in the AppImage should be automatically updated to the latest available… which version of the AppImage are you using?
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i am using GIMP_AppImage-release-2.10.8-withplugins-x86_64.AppImage from https://github.com/aferrero2707/gimp-appimage/releases
Could you try the very latest one?
https://github.com/aferrero2707/gimp-appimage/releases/download/continuous/GIMP_AppImage-git-2.10.9-withplugins-20190228-x86_64.AppImage
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Same problem (i’m using ubuntu mate 18.04.2 now). Seems also here the Gimp icon is missing. Thank you.
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In my case, when I hit the “OK” button to apply the filter (even if the preview has timed out), I get the following error:
*** Error in ./fx_simulate_film/_fx_cluts/*if/(...)/*if/*repeat/*if/*local/ *** Unreachable network file 'https://gmic.eu/gmic_cluts.gmz'.
I suspect the two problems are related. I will try to figure out why network access does not work…
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yes i get this too if pressing ok
I’m on it…
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Maybe some things, if it may help :
G’MIC uses calls to the library libcurl to retrieve files from the G’MIC domain https://gmic.eu , as a few filters require external data to be loaded (loaded files go to the G’MIC resources folder, which is often $HOME/.config/gmic ).
Thanks @David_Tschumperle. After some more investigations, it turn out that the error returned by libcurl is CURLE_SSL_CACERT_BADFILE. That is, the CA certificate is not accessible for some reasons… I have to see if that is a problem of environment variables.
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