Description

tziuhtli

opened on Jun 16, 2026

Issue body actions

Most appropriate sub-area of Processing 4?

PDE

Processing version

4.5.3

Operating system

Debian Forky, Gnome 50.2

Bug description

Hi, I just found out that you are now shipping a standalone .flatpak file on your releases. Happy to see that! (Although still not yet on flathub, I was happy to give it a try 👀 #1301).

Steps to reproduce this

Anyway, I downloaded the .flatpak file, then ran

flatpak install processing-4.5.3-linux-x64.flatpak

Opened the app drawer, and the app shows with a generic icon.

Additional Context

This other issue on the snap version might be related. #1331

Would you like to work on the issue?

No, I’m just reporting the issue

Activity

1. tziuhtli

   added

   bugSomething isn't workingSomething isn't working

   on Jun 16, 2026
2. SableRaf

   assigned

   catilac

   on Jun 16, 2026
3. SableRaf commented on Jun 16, 2026

   

   SableRaf

   on Jun 16, 2026

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   Thanks for the report @tziuhtli 🙏 cc @catilac who is looking into Processing's build system right now
4. catilac commented on Jun 23, 2026

   

   catilac

   on Jun 23, 2026

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   Hi @tziuhtli can you try installing the new 4.5.4 ?
5. catilac commented on Jun 25, 2026

   

   catilac

   on Jun 25, 2026

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   @tziuhtli actually...now 4.5.5 :)
6. catilac

   closed this as completedon Jun 30, 2026
7. tziuhtli commented on Jun 30, 2026

   

   tziuhtli

   on Jun 30, 2026

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   Hi @catilac, I saw this just now.
   Hence I went ahead and installed 4.5.5, unfortunately, I still cannot see the desktop icon. I'm happy to share logs or provide help. I'm not sure what the problem could be. I'll try a VM later, see if that works.
8. catilac commented on Jul 1, 2026

   

   catilac

   on Jul 1, 2026

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   @tziuhtli this might be fixed by #1534
9. tziuhtli commented on Jul 1, 2026

   

   tziuhtli

   on Jul 1, 2026

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   I just tried a debian trixie VM and can confirm that the desktop icon does not show up with 4.5.5. I'll wait for the next release that includes the pull you just linked.
10. tziuhtli commented on Jul 31, 2026

    

    tziuhtli

    on Jul 31, 2026

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    Hi @catilac, I went ahead and tried instlling 4.5.6 on my laptop but the desktop icon is still missing. I made sure to uninstalled the previous version and used flatsweep to remove all leftover data.

    I also tried installing on an empty VM, debian 13. The icon is still missing. Please consider reopening this issue. Cheers.
11. SableRaf

    reopened this on Jul 31, 2026
12. catilac commented on Jul 31, 2026

    

    catilac

    on Jul 31, 2026

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    @tziuhtli thanks for testing! Okay, sounds like it still needs work. I'll try to get some help fixing it
13. tziuhtli commented on Oct 23, 2026

    

    tziuhtli

    on Oct 23, 2026

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    Hi @catilac, I was having a closer look at this issue and it appears that the line that installs the icon file is commented out here https://github.com/processing/processing4/commits/main/app/linux/flathub.yml Perhaps this is deliberate, and I don't know if this will fix the issue though. But it seems like a potential fix. I don't have the dev environment to build the flatpak file.

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