I can reproduce a related issue on Ubuntu 26.04 LTS after upgrading from Ubuntu 24.04 LTS.
Symptoms: - Almost all GNOME icons disappear (Ubuntu Dock, Activities overview and top panel). - GNOME screenshots stop working. The kernel log contains AppArmor denials like: apparmor="DENIED" profile="unprivileged_userns" comm="gly-hdl-loader" name="/usr/bin/bwrap" capname="setpcap" and apparmor="DENIED" profile="unprivileged_userns" comm="gly-hdl-loader" capname="net_admin" The issue is 100% reproducible. Running aa-complain /etc/apparmor.d/unprivileged_userns followed by a reboot immediately restores all icons and screenshots. Running aa-enforce /etc/apparmor.d/unprivileged_userns followed by another reboot immediately reproduces the issue. The problem is system-wide and also affects newly created users. If additional logs or testing would be useful, I would be happy to provide them. Hardware: Intel Arrow Lake-P Graphics (PCI ID 8086:7d51), GNOME Shell 50.1, Mesa 26.0.3. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064672 Title: [SRU] - fixes for apparmor on noble To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2064672/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
