As far back as I remember this has been the case... I think it's an OS feature that the currently running process does not inherit the new group list from /etc/group. It's only when the process starts that the group list is read.
I'm not sure this is a bug, but it's really about the state of the process. So it's a kernel issue if at all. ** Package changed: gdm3 (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1771308 Title: Adding the user to a new group doesn't take effect on logout and back in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1771308/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs