Thanks for filing this bug report, Jack. I'm one of the IRC support volunteers who tried to help here, but I'm mostly out of ideas. As suggested on IRC, trying a mainline kernel may be a good idea (only if you can still reproduce the issue).
I should mention that a "USB-C Triple-4K Dock" (SerialNumber: DGWC0011000xxxxx) was connected to this system initially: https://www.startech.com/Cards-Adapters/Laptop-docking-stations/triple-4k-usb-c-laptop-docking-station~DK30CH2DPPD But from what I understood, the issue continued after this was disconnected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829402 Title: Purple screen hangup during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829402/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
