Eric & Rik seem to be referring to the wrong file. I am seeing the same issue, but it is usr/share/sddm/themes/ubuntu-theme/Main.qml that is the problem file.
At some point I had changed from the default UbuntuStudio themes (for the first time ever), because I could not login due to the sddm screen being mostly blank, and some applications being totally unusable. rossg@ross-ixtremem5120:/usr/share/sddm/themes/ubuntu-theme$ ls -la totalt 240 drwxr-xr-x 3 root root 4096 jan 14 12:52 . drwxr-xr-x 7 root root 4096 jan 11 2022 .. lrwxrwxrwx 1 root root 24 jul 9 2022 Background.qml -> ../breeze/Background.qml lrwxrwxrwx 1 root root 29 jul 9 2022 BreezeMenuStyle.qml -> ../breeze/BreezeMenuStyle.qml drwxr-xr-x 3 root root 4096 jan 14 12:52 components -rw-r--r-- 1 root root 4876 mar 19 2022 default-logo.svg lrwxrwxrwx 1 root root 15 sep 22 2020 faces -> ../breeze/faces lrwxrwxrwx 1 root root 28 jul 9 2022 KeyboardButton.qml -> ../breeze/KeyboardButton.qml lrwxrwxrwx 1 root root 19 jul 9 2022 Login.qml -> ../breeze/Login.qml -rw-r--r-- 1 root root 23070 jul 9 2022 Main.qml -rw-r--r-- 1 root root 388 mar 19 2022 metadata.desktop -rw-r--r-- 1 root root 189788 jul 9 2022 preview.png lrwxrwxrwx 1 root root 27 jul 9 2022 SessionButton.qml -> ../breeze/SessionButton.qml -rw-r--r-- 1 root root 218 mar 19 2022 theme.conf rossg@ross-ixtremem5120:/usr/share/sddm/themes/ubuntu-theme$ dpkg -S usr/share/sddm/themes/ubuntu-theme/Main.qml dpkg-query: ingen pakker fundet der matcher mønster *usr/share/sddm/themes/ubuntu-theme/Main.qml* Hmmm. How else can I find out who owns this file? -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to plasma-workspace in Ubuntu. https://bugs.launchpad.net/bugs/2003388 Title: sddm-theme-breeze breaks Ubuntu Studio login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/2003388/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs