This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1799994 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: bionic -- 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/1799994 Title: Xorg loads, no display on 4.15.0-38, works on 4.15.0-36 Status in linux package in Ubuntu: Incomplete Bug description: Lenovo ThinkPad W540 docked with an ultradock. 3 external displays running on VGA, DVI and display port all connected to the dock. BIOS mode set to run external displays ONLY with nvidia chipset. prime- select nvidia run. When running under 4.15.0-36-generic with nvidia 390.77-0ubuntu0.18.04.1 I boot and all three external displays run fine. Upgrading to 4.15.0-38 and Xorg starts up, but none of the displays light up. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799994/+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