I'm not sure if my issue is related: I upgraded to 4.15.0-24 yesterday (no other updates) and this morning I get a blank screen on boot that sits there indefinitely (i.e. minutes).
To fix this, I CTRL-ALT-F6 to get another tty, which immediately show up. This however seems to trigger some event, as the graphical login appears (displaces) my tty6 terminal without my intervention. So I can reliably get the graphical login back by "playing" with tty6. One thing I noticed during boot was the `nvidia-persistenced` (using Nvidia's proprietary 390 drivers) service doing a dozen start/stops in quick succession. This doesn't show up every time though, and the blank screen that follows prevents me from seeing more. `snapd.service` and `unbound.service` appear as the main offenders, but I'm not sure what's cause and effect here. Booting with the prior 4.15.0-23 kernel works fine, as before. ** Attachment added: "output of: systemd-analyze critical-chain" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1779827/+attachment/5159551/+files/critical-chain-23-vs-24.txt -- 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/1779827 Title: failure to boot with linux-image-4.15.0-24-generic Status in Ubuntu: Confirmed Status in linux package in Ubuntu: Triaged Status in The Bionic Beaver: Confirmed Status in linux source package in Bionic: Triaged Bug description: This was the last OK then my 18.04 hangs after an update this morning. 07:00 AM CEST Last Ok in boot was Started gnome display manager. dispatcher service ...... tem changes.pp link was shut down Tried install lightdm from command line and the response was lastest already installed. Probably it is what is coming after the lastest OK which is to be the error. And here I have lots of guesses...... Any Ideas ? I need to do some work and I may not be waiting long. Search and browsed and now close to give up. Yeah it is a Lenovo. Guys: turn of auto update it is a machine killer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1779827/+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
