Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15 ** Changed in: linux (Ubuntu) Importance: Undecided => High -- 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/1745814 Title: Kubuntu crashes repeatedly without error notices Status in linux package in Ubuntu: Confirmed Bug description: Since about two weeks my system has repeatedly crashed completely without any error notice. The screen freezes and no keys respond. I have to shut down the computer pushing the button to turn it on for a couple of seconds. On reboot, I usually get the error message PXE-E61: Media test failure, check cable PXE-M0F: Exiting Intel Boot Agent But usually Kubuntu boots after that without problems. Sometimes I have to Ctrl+Alt+Del to get boot going. I have no idea what causes the crash, it happens suddenly and without any hint about what triggers it. I attach the content of /var/log/syslog right before the crash from a couple of times it happened. I am running Kubuntu 16.04.3 LTS with Kernel 4.13.0-31 on a ThinkPad T460s. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745814/+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
