Actually, this is not a duplicate of bug #1559576. GDM3 as such doesn't play nice with NVIDIA. This has nothing to with Optimus. And it doesn't concern "hybrid (prime) systems", which is the bug referenced in the release notes on https://wiki.ubuntu.com/YakketyYak/ReleaseNotes/UbuntuGNOME#Known_Bugs
This is about systems with _only_ an NVIDIA card refusing to boot, because of GDM3, as soon as the proprietary drivers are installed.
Actually, this is not a duplicate of bug #1559576. GDM3 as such doesn't play nice with NVIDIA. This has nothing to with Optimus. And it doesn't concern "hybrid (prime) systems", which is the bug referenced in the release notes on https:/ /wiki.ubuntu. com/YakketyYak/ ReleaseNotes/ UbuntuGNOME# Known_Bugs
This is about systems with _only_ an NVIDIA card refusing to boot, because of GDM3, as soon as the proprietary drivers are installed.