Hi,
I miss quietly all my icons apps installed from Flathub.
I use Gnome-Software 47.4 on Nixos unstable.
Thank you!
And it’s also the same thing if I disable my Gnome extensions.
It also happens with Flatpak apps installed from command line.
So it’s not due to Gnome-Software.
What is the output of echo $XDG_DATA_DIRS?
Also if this are installed as user, what is the output of stat -c %y ~/.local/share/flatpak/exports/share/icons/hicolor/icon-theme.cache and strings ~/.local/share/flatpak/exports/share/icons/hicolor/icon-theme.cache.
If it’s system stat -c %y /var/lib/flatpak/exports/share/icons/hicolor/icon-theme.cache, strings /var/lib/flatpak/exports/share/icons/hicolor/icon-theme.cache
I’ve only ever seen this rarely, and usually it disappears after a restart.
Hi bbhtt!
[eyome@nixos:~]$ echo $XDG_DATA_DIRS
/nix/store/lclkbgxa5ljw587lr3aqrbx4k4sqr7jq-gnome-console-47.1/share:/nix/store/lp1n3fdfisbzvdgvmk7jk7xivl8hg2n5-gsettings-desktop-schemas-47.1/share/gsettings-schemas/gsettings-desktop-schemas-47.1:/nix/store/jlbffm71ylch5dyw44g2p2c857p1yqjv-gtk4-4.16.12/share/gsettings-schemas/gtk4-4.16.12:/nix/store/lclkbgxa5ljw587lr3aqrbx4k4sqr7jq-gnome-console-47.1/share/gsettings-schemas/gnome-console-47.1:/nix/store/mzpqxk2x7lbfpj5hk5q47ygi1rm3jqkp-gnome-mimeapps/share:/nix/store/gzb8byb2jh9sq4lwx5hhfqsc1zkmvm0g-desktops/share:/home/eyome/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/home/eyome/.nix-profile/share:/nix/profile/share:/home/eyome/.local/state/nix/profile/share:/etc/profiles/per-user/eyome/share:/nix/var/nix/profiles/default/share:/run/current-system/sw/share:/nix/store/lb38czk58q579sdangnijp3b2z3hkl9i-gnome-shell-47.4/share/gsettings-schemas/gnome-shell-47.4:/nix/store/fabm0m2hgfzg8g63rh2nj09if74frcin-gnome-session-47.0.1/share:/nix/store/lp1n3fdfisbzvdgvmk7jk7xivl8hg2n5-gsettings-desktop-schemas-47.1/share/gsettings-schemas/gsettings-desktop-schemas-47.1:/nix/store/s6sg70v6kkwmgkd6nv0rjr5kr28m9777-gtk+3-3.24.48/share/gsettings-schemas/gtk+3-3.24.48:/nix/store/433ipd9axfqx86mm6s9wn6ix4gpd91si-gnome-settings-daemon-47.2/share/gsettings-schemas/gnome-settings-daemon-47.2:/nix/store/fabm0m2hgfzg8g63rh2nj09if74frcin-gnome-session-47.0.1/share/gsettings-schemas/gnome-session-47.0.1:/nix/store/lb38czk58q579sdangnijp3b2z3hkl9i-gnome-shell-47.4/share
My apps are installed as system:
[eyome@nixos:~]$ stat -c %y /var/lib/flatpak/exports/share/icons/hicolor/icon-theme.cache
2025-02-23 15:55:32.332880483 +0100
eyome@nixos:~]$ strings /var/lib/flatpak/exports/share/icons/hicolor/icon-theme.cache
The program 'strings' is not in your PATH. It is provided by several packages.
You can make it available in an ephemeral shell by typing one of the following:
nix-shell -p _9base
nix-shell -p arocc
nix-shell -p bintools
nix-shell -p bintools-unwrapped
nix-shell -p binutils
nix-shell -p binutils-unwrapped-all-targets
nix-shell -p binutils-unwrapped_2_38
nix-shell -p binutilsNoLibc
nix-shell -p binutils_nogold
nix-shell -p busybox
nix-shell -p ccacheWrapper
nix-shell -p clang
nix-shell -p clang_12
nix-shell -p clang_13
nix-shell -p clang_14
nix-shell -p clang_15
nix-shell -p clang_16
nix-shell -p clang_17
nix-shell -p clang_18
nix-shell -p clang_20
nix-shell -p clang_multi
nix-shell -p distccWrapper
nix-shell -p gcc
nix-shell -p gcc10
nix-shell -p gcc11
nix-shell -p gcc12
nix-shell -p gcc13
nix-shell -p gcc14
nix-shell -p gcc9
nix-shell -p gcc_debug
nix-shell -p gcc_multi
nix-shell -p gccgo
nix-shell -p gccgo12
nix-shell -p gccgo13
nix-shell -p gccgo14
nix-shell -p gdc
nix-shell -p gfortran
nix-shell -p gfortran10
nix-shell -p gfortran11
nix-shell -p gfortran12
nix-shell -p gfortran13
nix-shell -p gfortran14
nix-shell -p gfortran9
nix-shell -p gnat
nix-shell -p gnat-bootstrap
nix-shell -p gnat-bootstrap11
nix-shell -p gnat-bootstrap13
nix-shell -p gnat-bootstrap14
nix-shell -p gnat12
nix-shell -p gnat14
nix-shell -p llvmPackages.bintools
nix-shell -p llvmPackages.bintools-unwrapped
nix-shell -p llvmPackages.bintoolsNoLibc
nix-shell -p llvmPackages.clangNoCompilerRt
nix-shell -p llvmPackages.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages.clangNoLibc
nix-shell -p llvmPackages.clangNoLibcxx
nix-shell -p llvmPackages.clangUseLLVM
nix-shell -p llvmPackages.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages.libcxxClang
nix-shell -p llvmPackages_12.bintools
nix-shell -p llvmPackages_12.bintools-unwrapped
nix-shell -p llvmPackages_12.bintoolsNoLibc
nix-shell -p llvmPackages_12.clangNoCompilerRt
nix-shell -p llvmPackages_12.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_12.clangNoLibc
nix-shell -p llvmPackages_12.clangNoLibcxx
nix-shell -p llvmPackages_12.clangUseLLVM
nix-shell -p llvmPackages_12.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_12.libcxxClang
nix-shell -p llvmPackages_13.bintools
nix-shell -p llvmPackages_13.bintools-unwrapped
nix-shell -p llvmPackages_13.bintoolsNoLibc
nix-shell -p llvmPackages_13.clangNoCompilerRt
nix-shell -p llvmPackages_13.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_13.clangNoLibc
nix-shell -p llvmPackages_13.clangNoLibcxx
nix-shell -p llvmPackages_13.clangUseLLVM
nix-shell -p llvmPackages_13.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_13.libcxxClang
nix-shell -p llvmPackages_14.bintools
nix-shell -p llvmPackages_14.bintools-unwrapped
nix-shell -p llvmPackages_14.bintoolsNoLibc
nix-shell -p llvmPackages_14.clangNoCompilerRt
nix-shell -p llvmPackages_14.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_14.clangNoLibc
nix-shell -p llvmPackages_14.clangNoLibcxx
nix-shell -p llvmPackages_14.clangUseLLVM
nix-shell -p llvmPackages_14.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_14.libcxxClang
nix-shell -p llvmPackages_15.bintools
nix-shell -p llvmPackages_15.bintools-unwrapped
nix-shell -p llvmPackages_15.bintoolsNoLibc
nix-shell -p llvmPackages_15.clangNoCompilerRt
nix-shell -p llvmPackages_15.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_15.clangNoLibc
nix-shell -p llvmPackages_15.clangNoLibcxx
nix-shell -p llvmPackages_15.clangUseLLVM
nix-shell -p llvmPackages_15.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_15.libcxxClang
nix-shell -p llvmPackages_16.bintools
nix-shell -p llvmPackages_16.bintools-unwrapped
nix-shell -p llvmPackages_16.bintoolsNoLibc
nix-shell -p llvmPackages_16.clangNoCompilerRt
nix-shell -p llvmPackages_16.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_16.clangNoLibc
nix-shell -p llvmPackages_16.clangNoLibcxx
nix-shell -p llvmPackages_16.clangUseLLVM
nix-shell -p llvmPackages_16.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_16.libcxxClang
nix-shell -p llvmPackages_17.bintools
nix-shell -p llvmPackages_17.bintools-unwrapped
nix-shell -p llvmPackages_17.bintoolsNoLibc
nix-shell -p llvmPackages_17.clangNoCompilerRt
nix-shell -p llvmPackages_17.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_17.clangNoLibc
nix-shell -p llvmPackages_17.clangNoLibcxx
nix-shell -p llvmPackages_17.clangUseLLVM
nix-shell -p llvmPackages_17.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_17.libcxxClang
nix-shell -p llvmPackages_18.bintools
nix-shell -p llvmPackages_18.bintools-unwrapped
nix-shell -p llvmPackages_18.bintoolsNoLibc
nix-shell -p llvmPackages_18.clangNoCompilerRt
nix-shell -p llvmPackages_18.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_18.clangNoLibc
nix-shell -p llvmPackages_18.clangNoLibcxx
nix-shell -p llvmPackages_18.clangUseLLVM
nix-shell -p llvmPackages_18.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_18.libcxxClang
nix-shell -p llvmPackages_20.bintools
nix-shell -p llvmPackages_20.bintools-unwrapped
nix-shell -p llvmPackages_20.bintoolsNoLibc
nix-shell -p llvmPackages_20.clangNoCompilerRt
nix-shell -p llvmPackages_20.clangNoCompilerRtWithLibc
nix-shell -p llvmPackages_20.clangNoLibc
nix-shell -p llvmPackages_20.clangNoLibcxx
nix-shell -p llvmPackages_20.clangUseLLVM
nix-shell -p llvmPackages_20.clangWithLibcAndBasicRtAndLibcxx
nix-shell -p llvmPackages_20.libcxxClang
nix-shell -p rocmPackages_5.rocgdb
nix-shell -p toybox
nix-shell -p u-root-cmds
@razeee I’d love to, but it’s been like this for months 
Thank you!
Looks like the icon cache isn’t being refreshed when installing Flatpaks and the cache has no entry for Flatpak app icons. Flatpak provides a trigger for this which is supposed to get automatically executed flatpak/triggers/gtk-icon-cache.trigger at main · flatpak/flatpak · GitHub
You can run the command manually to refresh it.
There’s probably something wrong which is why the triggers aren’t running. Pass -vvv when installing and check if it shows some info.
I just need to run:
cp /usr/share/icons/hicolor/index.theme "$1/exports/share/icons/hicolor/"
?
You can copy the script somewhere and manually run it like ./gtk-icon-cache.trigger ~/.local/share/flatpak or /var/lib/flatpak.
Does /usr/share/icons/hicolor/index.theme exist on Nix? Or is it in a different path relative to /nix/store?
[eyome@nixos:~/Bureau]$ sudo ./gtk-icon-cache.trigger.sh /var/lib/flatpak
[sudo] Mot de passe de eyome :
cp: impossible d'évaluer '/usr/share/icons/hicolor/index.theme': No such file or directory
Above your response 
What does find / -type f -name index.theme -path '*/hicolor/index.theme' 2>/dev/null show?
But it works! I finally have all my icons! 
Will I have to run this script each time I install a new Flatpak app?
[eyome@nixos:~/Bureau]$ find / -type f -name index.theme -path '*/hicolor/index.theme' 2>/dev/null
/run/user/1000/doc/by-app/hu.kramo.Cartridges/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/sniper_platform_0.20240618.92328/files/share/icons/hicolor/index.theme
/run/user/1000/doc/by-app/hu.kramo.Cartridges/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-TC9OR2/usr/share/icons/hicolor/index.theme
/run/user/1000/doc/by-app/hu.kramo.Cartridges/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-CKKIR2/usr/share/icons/hicolor/index.theme
/run/user/1000/doc/by-app/hu.kramo.Cartridges/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/soldier_platform_0.20240618.92327/files/share/icons/hicolor/index.theme
/run/user/1000/doc/by-app/hu.kramo.Cartridges/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/var/tmp-D1LO91/usr/share/icons/hicolor/index.theme
/run/user/1000/doc/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/sniper_platform_0.20240618.92328/files/share/icons/hicolor/index.theme
/run/user/1000/doc/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-TC9OR2/usr/share/icons/hicolor/index.theme
/run/user/1000/doc/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-CKKIR2/usr/share/icons/hicolor/index.theme
/run/user/1000/doc/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/soldier_platform_0.20240618.92327/files/share/icons/hicolor/index.theme
/run/user/1000/doc/96bdd863/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/var/tmp-D1LO91/usr/share/icons/hicolor/index.theme
/mnt/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/sniper_platform_0.20240618.92328/files/share/icons/hicolor/index.theme
/mnt/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-TC9OR2/usr/share/icons/hicolor/index.theme
/mnt/Jeux/Steam/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-CKKIR2/usr/share/icons/hicolor/index.theme
/mnt/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/soldier_platform_0.20240618.92327/files/share/icons/hicolor/index.theme
/mnt/Jeux/Steam/steamapps/common/SteamLinuxRuntime_soldier/var/tmp-D1LO91/usr/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.gnome.Platform/x86_64/47/5314bdbea1285ac19b9f943b7e795e646aeda99b7eb7ce9b677b4fb872a66bd8/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.gnome.Platform/x86_64/48/10943396e989593a17d9639a13927a190a3c6d292dacd0905ac3c3ec3371f2fe/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.kde.Platform/x86_64/5.15-24.08/9aa61e0a3c9d7575d2431e87c4ec248af208dcd88faf57fbe0d2370676b819fc/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.kde.Platform/x86_64/6.8/380cab658976e0aad33718871ea72aa1148083d05130dfd5ad3969e033bb7cff/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.kde.Platform/x86_64/6.7/4c0aecd4c103a394ba7a3cff247d4744b6bfdc0e54947f748d887841dd57c151/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.gnome.Sdk/x86_64/47/359ffe2dd3b9d931ff4cf3429e680108fbc3fcb49df706a5e69f13a154d4b477/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.freedesktop.Platform/x86_64/24.08/50874f35da7c9371a5f8e53384b2ae4fb0ab1ae2a461f5e964639dbc81f3aa01/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.freedesktop.Platform/x86_64/23.08/6086a950e292900fad185132f061192ae5b95b25e863961e05955657c75fa816/files/share/icons/hicolor/index.theme
/var/lib/flatpak/runtime/org.freedesktop.Sdk/x86_64/23.08/3542f5dad3a2d5cf2fc2a514eb70e6478170d7351aab11a3fe92b6bfe0ed2ec3/files/share/icons/hicolor/index.theme
/var/lib/flatpak/exports/share/icons/hicolor/index.theme
/nix/store/6xyxrs106dpki55as2hwickad8l17w8m-hicolor-icon-theme-0.18/share/icons/hicolor/index.theme
/home/eyome/Projects/.gnome-builder/flatpak/runtime/org.gnome.Platform/x86_64/master/ed701c47fff9fcb02d2790210bf57fc3703335c94249b5dad1966e9cf95c9d4f/files/share/icons/hicolor/index.theme
/home/eyome/Projects/.gnome-builder/flatpak/runtime/org.gnome.Sdk/x86_64/master/e6bd1d5c747912d96236c0f0733a8c5997d7ac941e8c2d4691785183dfed4cef/files/share/icons/hicolor/index.theme
/home/eyome/.local/share/Steam/ubuntu12_64/steam-runtime-sniper/var/tmp-XQRVR2/usr/share/icons/hicolor/index.theme
/home/eyome/.local/share/Steam/ubuntu12_64/steam-runtime-sniper/sniper_platform_0.20240423.85483/files/share/icons/hicolor/index.theme
[eyome@nixos:~/Bureau]$
No like I said it is supposed work automatically, so something is wrong.