Comment 11 for bug 1778817

> Ok, but we still need to know how to inhibit the screen locking in compiz,
> since the previous standard method is ineffective.

The command that Julian pointed out as the one used by u-r-u is correct and works from our testing

> unless you are running a GNOME session.

> https://bazaar.launchpad.net/~ubuntu-core-dev/ubuntu-release-upgrader/trunk/view/head:/DistUpgrade/DistUpgradeQuirks.py#L444

It looks like Unity sessions are in a similar situation so maybe the code should be change to keep the inhibitor for those as well (maybe poping up a dialog explaining that screen lock is not going to work until reboot if that's less confusing to users?). That's a different case than the one reported here though