** Attachment added: "syslog2.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1685141/+attachment/4866358/+files/syslog2.txt
** Description changed: When locking the screen or whenever the screensaver starts automatically, I cannot log in again, but my system completely freezes and I have to restart the computer. In most cases I was able to do the restart by pressing Alt-REISUB, in some cases however I had to do a hard reset. This is a new bug in zesty (Ubuntu 17.04). In the previous version everything worked fine. I tested both the upgrade and a fresh new installation on the same computer. Package is gnome-screensaver version 3.6.1-7ubuntu5. I attach an excerpt from my syslog. Hope this might help to find the bug. I installed zesty on another computer (laptop) as well and there the bug did not appear. So I assume it has something to do with the installed graphics card or graphics driver. Installed graphics card in this case is: NVIDIA Corporation GF108 [GeForce GT 630] (rev a1). + + Update: After a few days the bug now appears on the second computer as + well. However, I could unlock the screen and continue working, until + suddenly (an hour later or so) the whole system froze. I add the kernel- + nullpointer-dereference syslog of this event (syslog2.txt) to the + attachments for this bug. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1685141 Title: System freezes after locking screen Status in gnome-screensaver package in Ubuntu: New Bug description: When locking the screen or whenever the screensaver starts automatically, I cannot log in again, but my system completely freezes and I have to restart the computer. In most cases I was able to do the restart by pressing Alt-REISUB, in some cases however I had to do a hard reset. This is a new bug in zesty (Ubuntu 17.04). In the previous version everything worked fine. I tested both the upgrade and a fresh new installation on the same computer. Package is gnome-screensaver version 3.6.1-7ubuntu5. I attach an excerpt from my syslog. Hope this might help to find the bug. I installed zesty on another computer (laptop) as well and there the bug did not appear. So I assume it has something to do with the installed graphics card or graphics driver. Installed graphics card in this case is: NVIDIA Corporation GF108 [GeForce GT 630] (rev a1). Update: After a few days the bug now appears on the second computer as well. However, I could unlock the screen and continue working, until suddenly (an hour later or so) the whole system froze. I add the kernel-nullpointer-dereference syslog of this event (syslog2.txt) to the attachments for this bug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1685141/+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
