Just a heads up: I'm seeing exactly the same behavior on OpenSUSE LEAP 15.2
This happens with Xfce4 desktop. It seems to be a rare bug; no one has hard about this when I asked on the mailing list. I did some debugging of keepassxc (since it's a relatively small app). Installed some debug packages, then "gdb keypassxc", wait 5 seconds until it stops printing "[New Thread 0x7fffe945b700 (LWP 18090)]", then Ctrl+C to get the stack traces. "info threads" to see which threads there are. "thread " + id to switch between them. The app hangs for 25 seconds when I try to start it which matches this timeout: __GI___poll (fds=0x555555f994d0, nfds=1, timeout=25000) at ../sysdeps/unix/sysv/linux/poll.c:29 Googling returned this analysis: https://freefilesync.org/forum/viewtopic.php?t=6704 The stack traces look very similar: Threads hanging in __lll_lock_wait and __GI___poll called from ibus_bus_new_async_client and g_simple_async_result_get_type respectively. In the mean time, I've found more apps with the same symptom: - qmmp - qtconfig ("Qt 4 settings" in the Xfce settings dialog.) I'm wondering about this line in the stack trace: /usr/lib64/qt5/plugins/styles/libqgtk2style.so Maybe there is a bug in the Qt style which I'm using. Stack frame 45 says style is "QGtk2Theme::themeHint(QPlatformTheme::ThemeHint) const::{lambda()#1}::operator()() const::qstring_literal" which would match the setting in the "Qt 4 settings" dialog but I'm using Qt5. Or is the dialog for both? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852016 Title: Applications delayed on launch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1852016/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
