This is not an issue with 12.04. I have experienced this consistently in 16.04, 18.04 and 20.04 I have nvidia, so the common theme seems to be nvidia (however, may not even be that).
I have tried in vain to find a fix for the last 4 years and have now learned to live with it (save frequently, etc). It sucks but not enough to go back to Windows Recently I plugged in a 3rd monitor to my desktop and the issue seems to have increased -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/980519 Title: Random log off in Ubuntu 12.04 LTS Status in Unity: Fix Released Status in gnome-desktop package in Ubuntu: Confirmed Status in nvidia-graphics-drivers package in Ubuntu: Fix Released Status in unity package in Ubuntu: Fix Released Status in xorg package in Ubuntu: Fix Released Status in Fedora: New Bug description: I get logged off from Ubuntu sometimes. There is no error message or any indication that it is going to log off. The screen goes black, and after 2-4 seconds, i get presented with the Ubuntu Log On Screen. There is no clear pattern (or at least if have not noticed any). One time i am working with Netbeans, another time i am using firefox. This also means that at present i can not clearly say what package might be causing this behaviour. I am fairly sure the problem lies in 12.04 (or more precise - the combination of 12.04 and the hardware i am using). I do not have the same problem running 11.04 or 11.10. To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/980519/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
