I'm pretty sure I have tracked this problem down to a problem with
pipewire and/or alsa.
After changing the notification sound from "default" to "none" in the
Genome settings, the terminal hangs seem to be gone. Firefox still
hangs, however (not surprisingly so, since it shouldn't be affected by
Gnome settings at all).
Gnome settings shows no audio output devices. "aplay -L", on the other
hand, *does* show devices. So the problem seems to be caused by pipewire
(which replaced pulseaudio in Ubuntu 24.04 as far as I know).
Interestingly, running "alsamixer" in a terminal also hangs.
I have checked pipewire-pulse and wireplumber with systemctl --user, and
both services seem to be running.
** Also affects: pipewire (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu.
https://bugs.launchpad.net/bugs/2081281
Title:
gnome terminal and other apps freezes for about 30 seconds
Status in gtk+3.0 package in Ubuntu:
Confirmed
Status in pipewire package in Ubuntu:
New
Bug description:
After I did a release upgrade from 22.04 LTS to 24.04.1 LTS some GUI
operations lead to a freezing app. I first observed it in gnome-terminal when
clicking the plus sign to open another tab. Another example is
gnome-control-center. If klick to open the control center help page, the
control center freezes. And here is another example. In firefox if I want to
fill out a html form, opening a drop down item lets freeze firefox for a while.
All examples highlight a infobox asking, if I want to wait for the app to
respond or kill it.
I tried it using X11 or Wayland. Both show the same beavior. I also
switched to another desktop manger (from gdm to sddm) but the behavior
is the same. I created a new user but also the behavior is the same.
I downloaded a live image of Ubuntu Studio and started it from a usb
stick, so all was fine.
I guess the problem is in the deep of the system, maybe the kernel,
but I do not have the knowledge to investigate it.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/2081281/+subscriptions
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