Hi. Original poster, here. Indeed, I am unable to run that command, as the system is hard frozen, and requires a full power cycle. (<alt><sysrq><b> does nothing, but this appears to be a key mapping issue, so I don't know if the kernel has actually panic, or if the UI is simply 100% crashed.) I did think to add the remainder of the syslog, though:
** Attachment added: "syslog-pre-crash.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1585462/+attachment/4673897/+files/syslog-pre-crash.txt ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1585462 Title: Dell Latitude E7440 crash on lid close (MATE 16.04) Status in linux package in Ubuntu: Confirmed Bug description: Fresh install of 16.04 (installed twice, now -- same issue both times; apt-get update; apt-get dist-upgrade run in both cases, so latest packages). On lid close, system hard freezes, requiring power cycle. On opening lid, is frozen on lockscreen. No mouse movement, no keyboard movement, <ctl><alt><f1> does nothing. Freezes ~80% of the time; occasionally (perhaps related to WiFi not being enabled), it suspends properly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1585462/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
