and the last updates broke it for me too (black screen on tty8, Num Lock doesn't work on tty8)
unity8.log android_dlopen called but not implemented! unity8: linker.c:27: android_dlopen: Assertion `0' failed. () qtmir.screens: ScreensModel::ScreensModel [2016-05-06 10:42:04.970417] mirplatform: Found graphics driver: mir:mesa-x11 (version 0.22.0) [2016-05-06 10:42:04.972690] mirplatform: Found graphics driver: mir:mesa-kms (version 0.22.0) qtmir.mir: MirServer created qtmir.mir: Command line arguments passed to Qt: ("unity8") [2016-05-06 10:42:04.989166] mirserver: Starting ERROR: QMirServer - Mir failed to start unity8-dash.log Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0' Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0' UbuntuClientIntegration: connection to Mir server failed. Check that a Mir server is running, and the correct socket is being used and is accessible. The shell may have rejected the incoming connection, so check its log file UbuntuClientIntegration: connection to Mir server failed. Check that a Mir server is running, and the correct socket is being used and is accessible. The shell may have rejected the incoming connection, so check its log file -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1537389 Title: The Desktop Never Loads and just stays on a black screen Status in Mir: Incomplete Status in mir package in Ubuntu: Incomplete Status in unity8 package in Ubuntu: Incomplete Status in unity8-desktop-session package in Ubuntu: Incomplete Bug description: The cursor is also not shown, neither is the Unity 8 Lock Screen or Indicators. Ubuntu 16.04 Daily ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity8-desktop-session-mir 1.0.12+15.10.20150609-0ubuntu1 ProcVersionSignature: Ubuntu 4.3.0-7.18-generic 4.3.3 Uname: Linux 4.3.0-7-generic x86_64 ApportVersion: 2.19.3-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Sat Jan 23 18:44:45 2016 InstallationDate: Installed on 2016-01-22 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160122.2) PackageArchitecture: all SourcePackage: unity8-desktop-session UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1537389/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp