I've been getting exactly the same issue as described here, always when I log in and find an "Authentication Required" dialog window in the top left of the screen. I've attached a screen shot, the details of my environment are below:
OS: PopOS (Ubuntu 20.04 LTS x86_64) Kernel: 5.4.0-7626-generic DE: Gnome Window manager: Mutter I also have a Yubikey that I'm using in challenge-response mode and have the following line inserted in the following PAM modules: `auth sufficient pam_yubico.so mode=challenge-response chalresp_path=/var/yubico` ** Attachment added: "Screenshot of the authentication prompt" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1824874/+attachment/5366258/+files/Screenshot%20from%202020-05-04%2015-45-51.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824874 Title: undismissable, unclickable authentication dialog left on screen (top- left corner) after policykit authentication [pushModal: invocation of begin_modal failed] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1824874/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs