Two other apps that show the problem: pavucontrol and cheese.
I'm using the openbox window manager. I assume the apps are looking for some
sort of reply that a gnome desktop would give them.
In strace, it's waiting on:
poll([{fd=15, events=POLLIN}], 1, 25000)
(the fd 15 for cheese, 11 for pavucontrol).
If I run journalctl -b 0 while pavucontrol is waiting to start, I get
the attached log: I've edited it to show the end of one run of
pavucontrol and then a second run up to the point where it hangs (with
comments interspersed by me). At the end of the previous run, after I
hit ^C, it prints
Failed to create file chooser proxy: Error calling StartServiceByName
for org.freedesktop.impl.portal.desktop.gtk: Timeout was reached
A web search for that message gives a gazillion hits -- lots of people
are seeing this -- but so far I haven't found a solution/workaround.
** Attachment added: "journalctl -b 0 from two sucessive runs of pavucontrol"
https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1852016/+attachment/5373818/+files/journalctl.b.0.txt
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https://bugs.launchpad.net/bugs/1852016
Title:
Applications delayed on launch
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