It just stopped working, on two different machines, don't know what I did exactly. Is there a way to re-initialize the built-in krunner functionality ? Deleted the corresponding activity, created a fresh new one from template, to no avail. Using 4.9.4 on Arch.

Thank you.

Can you double check to see if "krunner" is running on both machines?

Yes, there's a 'krunner' process running on both in the background. Searching directly in 'krunner' (Alt + F2) is successful.

Does this work properly under a new user?

It does work properly with a new user. I just want to know if we can re-initialize this functionality.

Thx.

Unfortunately to the best of my knowledge, the only way to fix this is going to be to move your Plasma configurations elsewhere and see if that corrects the issue.

Make sure that Plasma is not running when you do this.