After the login screen, the UI freezes on a black screen. I reproed this today with the 418 drivers, but I first encountered this in June 2018, after an update for the initramfs-tools package.
At the time I downgraded the package, marked it for hold, and logged a bug with initramfs-tools here: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1778429
This week I attempted to tackle this again, and try to figure out more about the issue.
My setup is a Dell XPS 7000 series gaming laptop from late 2017, I run it using ubuntu and gdm3 with wayland turned off, prime-select set as nvidia, and an external monitor running through the hdmi port.
I am not using
nvidia-drm modeset=1 in my boot params, though that does solve this issue, it introduced other issues with my external monitor setup.
I am using a m.2 nvmessd, and encrypted home folder, and encrypted swap. That last part is related to the workaround for the issue.
For a workaround today, so I could use the updated initramfs-tools, I manually set a resume device, in order to cause initramfs to mimic the old behaviour. Basically initramfs had changed to skip the encrypted swap in its autodetection, as it couldn’t resume from it anyways: http://launchpadlibrarian.net/374080978/initramfs-tools_0.130ubuntu3_0.130ubuntu3.1.diff.gz to fix: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1771962
So I went and set the following to get my setup to work:
RESUME=UUID=$(blkid -s UUID -o value "/dev/mapper/cryptswap1")
If I set Resume to None, I basically always encounter this login error. If I prime-select intel, I can login. If I boot with nvidia-drm modeset=1, I can login. If I set the resume to my encrypted swap, I can login. But with the default settings, no luck.
Seems kinda bizarre to me.
nvidia-bug-report.log.gz (1.15 MB)