@kaihengfeng Following instructions here, https://wiki.ubuntu.com/Kernel/MainlineBuilds I've installed generics, rebooted, and was welcomed to the blinding white void. Hazarding a guess, I typed in my system's encryption password and it subtly changed brightness like it usually did and a mouse cursor appeared. So that's something. Switching to a virtual console still was white but I was able to blindly login and type in `sudo reboot now` and switch back to a stable kernel.
Removing a workaround employed here, https://forums.lenovo.com/t5/Other-Linux-Discussions/ThinkPad-E485-E585-Firmware-bug-ACPI-IVRS-table/td-p/4191484 particularly the `ivrs_ioapic[32]=00:14.0` line didn't resolve and just left me hung after GRUB like it did normally. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848108 Title: [amdgpu] Screen Glitching & Kernel Panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1848108/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs