attached "ps auxw" while GUI was freezed. kernel 5.4.1-050401-generic no swap I restarted GUI using /etc/init.d/sddm restart right now only the KDE taskbar and menu are locked, Alt-Tab and programs still work. (this is a rather new phenomena) I already experienced this once, where some programs were freezed too (eg libreoffice) and others weren't. I only got a message like "program does not answer, force close it"? maybe this is a second hand problem as some inter-process communication locks apps when KDE is locked?
after about 5 minutes KDE bar crashed and restarted. now works. from syslog while KDE bar locked: pulseaudio[30539]: E: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. ... PackageKit: daemon quit systemd[1]: packagekit.service: Main process exited, code=killed, status=15/TERM systemd[1]: packagekit.service: Succeeded. ... dbus-daemon[1772]: [system] Activating via systemd: service name='org.freedesktop.PackageKit' unit='packagekit.service' requested by ':1.679' (uid=1000 pid=32050 comm="/usr/bin/plasmashell ") systemd[1]: Starting PackageKit Daemon... PackageKit: daemon start dbus-daemon[1772]: [system] Successfully activated service 'org.freedesktop.PackageKit' systemd[1]: Started PackageKit Daemon. ** Attachment added: "processes.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852001/+attachment/5310701/+files/processes.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852001 Title: KDE GUI freeze on high disk IO, but disabling swap fixes it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852001/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
