ok, all's not wine and roses. When exiting X, it goes into the same style lockup as used to happen on boot. Which includes crashing so hard that often times (but not all the time) the BIOS can't find the boot disk after the next power cycle.
At least the bug moving further back in the chain means I can do some work, and investigate a running system. Thank goodness I didn't uninstall the (still happily working) kernel-4.14.18-300.fc27.x86_64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751268 Title: bionic desktop does not boot with external monitor attached - [drm:ironlake_crtc_enable [i915]] *ERROR* mode set failed: pipe A stuck / vblank wait timed out on crtc 1 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1751268/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
