GDM3 bug

[roger.wiberg at gmail.com]

Would you have a look at this bug and confirm it, please:

https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1632322

If the computer can no longer boot successfully once the proprietary
graphics drivers are activated (something that is likely to happen
first thing when we're talking about NVIDIA), this amounts to a
showstopper, IMHO.

With any luck, if enough people can confirm the bug, we might have it
looked at before release.

Roger