Comment 0 for bug 2017498

gnome-control-center crashes on ubuntu 23.04 when trying to open the mouse screen

Steps to reproduce:

1. In GNOME Settings, navigate to the mouse screen. The control center crashes (i.e., the window closes instead of showing the mouse screen).
2. Start GNOME Settings again, e.g., using GNOME Shell or by running the following command from the terminal: `gnome-control-center`. The main window does not show. Instead, the commandline output prints an error message as follows:

Commandline output:

```
gnome-control-center --verbose
21:10:51.6276 GStreamer-Play[32248]: ERROR: GtkGstPlay: 'playbin' element not found, please check your setup
[1] 32248 trace trap (core dumped) gnome-control-center --verbose
```

More observations: Note, this happens reproducably. I just recently upgraded to ubuntu 23.04, which means I am running GNOME 44. I am now unable to start the gnome-control-center. It happens in wayland and xorg sessions. I am using an intel x86 laptop, a lenovo thinkpad x1 carbon.

Workaround: The following workaround allows to start gnome-control-center again, but does not allow to access the mouse panel. In dconf editor, reset `org/gnome/control-center/last-panel'. The control center will then open successfully. I think this indicates that the mouse panel causes gnome-control-center to crash.

Upstream ticket over at GNOME's gitlab project:
https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2459

Upstream analysis by Felipe Borges, maintainer of the upstream project:

> The issue seems to be about Ubuntu packaging not including the needed dependencies for the GtkPicture videos we now show in the Mouse panel.
> Could you please file this issue downstream in the Ubuntu bug tracker?