I can confirm the same is also happening on my notebook. Everything was fine up to about 2-3 weeks ago.
``` hendri@neptune: ~$ cat /etc/issue Ubuntu 16.04.4 LTS \n \l ``` OS: Ubuntu 16.04.4 ... all up to date Hardware: Gigabyte P15 Notebook - Graphics - nVidida GTX 950M + Intel (Dual graphics) - Processor - i7-7700HQ - HDD 1 - Standard 1 TB HDD - HDD 2 - 950 Evo m.2 SSD - 8GB mem Graphics driver - nVidia 384.111 I reckon it has something to do with the nVidia Driver. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733557 Title: Login screen showing Authentication Failure Switch to greeter... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1733557/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
