How does one globally disable device notifications

Hi, We've recently moved from 4:14.0.4 on Debian jessie to 4:14.0.6 on Debian stretch and all of our users (remote displays via tdm/XDMCP) are getting device popups when a usb device is connected (daily change of SSD for backup for example). How do I globally disable this? I've tried putting a kdedrc in my global profile directory containing: but that doesn't seem to do it. Any ideas? -- Regards, Russell -------------------------------------------------------------------- | Russell Brown | MAIL: russell(a)lls.com PHONE: 01780 471800 | | Lady Lodge Systems | WWW Work: http://www.lls.com | | Peterborough, England | WWW Play: http://www.ruffle.me.uk | --------------------------------------------------------------------