Maybe unrelated, but you are using an unsupported and deprecated "intel"
Xorg driver which is known to be buggy. Please uninstall that:
sudo apt remove xserver-xorg-video-intel
and remove any custom Xorg config files that were requesting the use of
the old "intel" driver.
** Summary changed:
Thanks. The only relevant gnome-shell crashes I can see are the "fatal
IO error"s communicating with the X server. To debug those, please add
MUTTER_SYNC=1 to your /etc/environment, reboot the machine and then
report new crashes per the steps in comment #2.
** Package changed: ubuntu => gnome-she
Uploading journal.txt as zip X11VNC became very unhappy and spammed the
same thing over and over.
** Attachment added: "journal.txt.zip"
https://bugs.launchpad.net/ubuntu/+bug/2094849/+attachment/5851988/+files/journal.txt.zip
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** Attachment added: "prevjournal.txt"
https://bugs.launchpad.net/ubuntu/+bug/2094849/+attachment/5851960/+files/prevjournal.txt
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https://bugs.launchpad.net/bugs/2094849
Title:
Grap
Running `ubuntu-bug _usr_bin_update-manager.1000.crash` did not produce a
bug report. It just invoked the usual "this program crashed send or don't
send" I will attach it here.
** Attachment added: "_usr_bin_update-manager.1000.crash"
https://bugs.launchpad.net/bugs/2094849/+attachment/58519
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It sounds like some part of the system has crashed. To
help us find the cause of the crash please follow these steps:
1. Run these commands:
journalctl -b0 > journal.txt
journalctl -b-1 > prevjournal.txt
an