I saved the output of 'journalctl -b 0' to a file. It's in the attachments.
** Attachment added: "journalctl.log" https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1879702/+attachment/5375608/+files/journalctl.log -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1879702 Title: The software properties screen freezes when I update the software cache Status in software-properties package in Ubuntu: Incomplete Bug description: I am currently using Ubuntu 20.04, but I had the same problem in 19.10. When I make changes to the software resources, when closing the program, "Update the software cache?" I come across the question. If I say yes, it updates the cache but the window freezes. It cannot be closed in any way. 'lsb_release -rd': Description: Ubuntu 20.04 LTS Release: 20.04 'apt-cache policy software-properties': software-properties: Installed: (none) Candidate: (none) Release schedule: ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: software-properties-gtk 0.98.9 ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34 Uname: Linux 5.4.0-31-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 20 16:08:11 2020 ExecutablePath: /usr/bin/software-properties-gtk InstallationDate: Installed on 2017-06-10 (1075 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) InterpreterPath: /usr/bin/python3.8 PackageArchitecture: all Python3Details: /usr/local/bin/python3.7, Python 3.7.2, unpackaged PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4 SourcePackage: software-properties UpgradeStatus: Upgraded to focal on 2020-05-11 (8 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1879702/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp