It seems likely that this is a duplicate of bug #1938013: kernel 4.15.0-151 is freezing various CPUs.
-- 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/1938275 Title: UI becomes completely unresponsive Status in linux package in Ubuntu: Confirmed Bug description: Starting from last Friday, i have had problems with Ubuntu freezing up. Although the mouse pointer still moves, clicking on things does not work. I was able to get to text mode terminal using Ctrl+Alt+Fx keys and shut down from the command line, which seemed to be unaffected. Shutting down took ages. Upon logging in again, it hung immediately as soon as the desktop loaded and i was not able to launch any applications or shut down from the UI, in fact this time i was not able to get to the text mode terminals either and had to shut down using the power button. I have since been booting from an earlier version of the kernel without issue (-147 instead of -151). This morning i tried 151 again and it immediately froze up upon logging in, before the desktop had loaded, and even the mouse pointer was frozen this time. Had to hard-reboot and booted back into -147 just fine. Hardware is a Dell Latitude E7470 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1938275/+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
