I had been facing the same problem along with one more user account named "No value has been set". For "Libvirt Qemu" tried purging "qemu-kvm" and it's configuration files. But still user account was existed. I had been trying for the solution and found one that you can also try. (I'm using linux mint 18.2 Sonya)
Go to location /etc/ as root and find a file named "passwd" and open it. Now find the line "libvirt-qemu:x:64055:132:Libvirt Qemu,,,:/var/lib/libvirt:/bin/false" (see the image I attached not to get confused, values may vary in your case) and clear it (don't clear any other line which is not related to "libvirt-qemu"). I found that line almost at the end of the list. If you're having one more user account named "No value has been set" then clear the line below: "<admin name>:x:1001:1002:No value has been set:/dev/null:/dev/null" (values may vary in your case) And now I don't have these user accounts or any other issue after removing those values: "libvirt qemu" and "No value has been set" ** Attachment added: "IMG_20170914_192319.jpg" https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1667113/+attachment/4950189/+files/IMG_20170914_192319.jpg -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to sddm in Ubuntu. https://bugs.launchpad.net/bugs/1667113 Title: System users appears in Ligthdm and user switcher (Accountsservice has no filter for shell types) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1667113/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
