I filed a new bug with Cinnamon at https://github.com/linuxmint
/cinnamon-screensaver/issues/246. Feel free to close this issue - I
don't seem to have that option available to me. Thanks for your quick
response and helpful triage!
** Bug watch added: github.com/linuxmint/cinnamon-screensaver/issue
Cinnamon 3.4.6 on Linux Mint 18.2.
You're right, this is a video of the lock screen. I thought both login
and lock functionality was provided by the display manager. Since you
mention my lock screen is provided by the shell, would it be better to
file this bug with the Cinnamon project instead?
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