On Sat, 26 Sep 2020 at 17:35:58 -0400, Santiago Batista wrote:
> In a Wayland session, the mouse is not visible in the first ~10
> seconds of the session. If the user tries to open any window shortly
> after logging in (using the keyboard), the session immediately crashes.

Are you using any GNOME Shell extensions? If you are, please try disabling
them and see whether this still happens.

> From the kernel log:
> gnome-shell[3136]: segfault at 1c ip 00007f1520c0de27 sp 00007ffd81363130 
> error 4 in libmutter-7.so.0.0.0[7f1520b89000+115000]

Can you get a backtrace from this crash? Since you're using systemd,
the easiest way is probably to install systemd-coredump and gdb, reboot,
then reproduce the crash. "coredumpctl gdb" will load the resulting crash
dump into gdb for analysis.

To get a useful backtrace, you will need to install at least
libmutter-7-0-dbgsym from the debian-debug archive. See
https://wiki.debian.org/HowToGetABacktrace for more details.

It would also be useful if you could log in to a Wayland session, *not*
open any windows (so this crash doesn't happen), then look at the systemd
journal for the log messages that happened around 10 seconds after login -
that might give us some clues about what event you have to wait for to
avoid this crash.

Thanks,
    smcv

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