*** This bug is a duplicate of bug 1969357 ***
https://bugs.launchpad.net/bugs/1969357
This is duplicate of https://bugs.launchpad.net/ubuntu/+source/gnome-
session/+bug/1969357
As a workaround you can manually change themes from tweak tool and
alt+tab to desktop.
But better option is
** Attachment added: "The error screen..."
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1968565/+attachment/5580964/+files/Oh_no_unity-2.jpg
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Sometimes I got an 'Oh no' error screen with an logout button, maybe
every second or third time, see attachment.
Same behavior when installing ubuntu-unity-desktop instead of unity.
Selecting gdm3 or lightdm makes no difference.
ubuntu 21.10 works fine...
Xubuntu 22.04 beta also, so there is a
