Tried following kernel versions with system upgraded w/ or w/o nvidia- driver-390 (version 390.116-0ubuntu0.18.04.1) installed. Booting with HDMI cable connected doesn't have any problem for X, and I got dual screen working as expected.
* 4.15.0-1035-oem * 4.15.0-20-generic * 4.15.0-36-generic * 4.15.0-47-generic * 4.18.0-15-generic * 4.18.0-18-generic I'm closing this as INVALID. Should there be any further finding, please don't hesitate to reopen it. ** Changed in: linux (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768139 Title: Kernel crash when booting laptop with hdmi monitor connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768139/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs