Bug#874621: screen lock cannot be unlocked in vnc session

[Simon McVittie]

On Fri, 08 Sep 2017 at 12:22:37 +0530, Pirate Praveen wrote:
> package: gnome-shell
> version: 3.22.3-3
> 
> This broke after a dist upgrade in sid yesterday.

What did you upgrade? Please look at /var/log/apt/*.log*. gnome-shell
hasn't been updated in sid since April, so unless your sid installation
was previously extremely outdated, it wasn't a gnome-shell upgrade that
triggered this.

After upgrading whatever packages triggered this, did you reboot, or
log out and back in, or neither? If you didn't do either, the old
gnome-shell will have continued to run with the old libraries, in which
case we'd need to know which gnome-shell version and relevant libraries
(clutter, mutter, gtk, gdk-pixbuf) were installed at the time you
started the VNC session.

Are there any relevant messages in syslog, the systemd Journal,
~/.cache/gdm/session.log (if you use gdm), or ~/.xsession-errors?

(Also, in future please use reportbug, which would have listed all the
relevant packages after your upgrade already.)