Comment 5 for bug 2038401

Thank you for the provided info in this ticket!

We have 600+ student laptops with this problem (battery drains in a matter of hours because of this)

At the moment we fix them using following set of commands

sudo killall dpkg grub-multi-inst
sudo dpkg-reconfigure shim-signed
sudo update-grub

We control them using Saltstack and searching for a fix for all at once - probably something with debconf-set-selections