Since I ended up with a large number of zombie processes for chromium-browser I decided to shut down the laptop completely, to get a clean, cold boot. There I came unstuck. This is F12, fully updated. The bubble fills up, I see the Fedora logo, then it reboots. I could try to catch it and get a level 3 login, of course, but since I haven't a clue what's causing this, I wouldn't know what to do next. Any ideas? Anne
