Thanks. That version should have the nautilus profile that makes the thumbnails appear, so we will need to dig a bit deeper.
Could you paste the results of the following command? This will show us if there is a profile for nautilus loaded and it should look something like this $ sudo aa-status --filter.profile=nautilus apparmor module is loaded. 178 profiles are loaded. 0 profiles are in enforce mode. 0 profiles are in complain mode. 0 profiles are in prompt mode. 0 profiles are in kill mode. 1 profiles are in unconfined mode. nautilus 19 processes have profiles defined. 0 processes are in enforce mode. 0 processes are in complain mode. 0 processes are in prompt mode. 0 processes are in kill mode. 0 processes are unconfined but have a profile defined. 0 processes are in mixed mode. After, lets put nautilus in audit mode with $ sudo aa-audit nautilus Open your favorite web browser and download any image from there. Open the file browser and check if the thumbnail is still not loading Let's also check if nautilus is running unconfined with the AppArmor profile: $ ps -auxZ | grep nautilus nautilus (unconfined) georgia 7599 15.5 2.7 2636400 220492 ? Sl 18:27 0:03 /usr/bin/nautilus --gapplication-service Then, check the system logs for any logs like the following: $ sudo dmesg | grep apparmor [ 2752.926412] audit: type=1400 audit(1716239896.790:226): apparmor="AUDIT" operation="userns_create" class="namespace" profile="nautilus" pid=7466 comm="bwrap" requested="userns_create" It would be great if you could share what the result of these commands looks like in your system -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2047256 Title: Ubuntu 24.04 Some image thumbnails no longer displayed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/2047256/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
