@Michal Sawicz, as far as I understand the problem in bug #1526658, my problem is not due to wrong/old packages.
LC_ALL=C apt-cache policy libmirclient9 libmirclient9: Installed: 0.19.2+16.04.20160210-0ubuntu1 Candidate: 0.19.3+16.04.20160212-0ubuntu1 Version table: 0.19.3+16.04.20160212-0ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages *** 0.19.2+16.04.20160210-0ubuntu1 100 100 /var/lib/dpkg/status C_ALL=C apt-cache policy libmirserver37 libmirserver37: Installed: 0.19.2+16.04.20160210-0ubuntu1 Candidate: 0.19.3+16.04.20160212-0ubuntu1 Version table: 0.19.3+16.04.20160212-0ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages *** 0.19.2+16.04.20160210-0ubuntu1 100 100 /var/lib/dpkg/status dpkg -l | grep mir ii libmirclient9:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii libmircommon5:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii libmircookie2:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii libmirplatform11:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii libmirprotobuf3:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii libmirserver37:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii mir-client-platform-mesa4:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii mir-graphics-drivers-desktop:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii mir-platform-graphics-mesa-kms7:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii mir-platform-graphics-mesa-x7:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii mir-platform-input-evdev5:amd64 0.19.2+16.04.20160210-0ubuntu1 amd64 ii qtdeclarative5-qtmir-plugin:amd64 0.4.7+16.04.20160208-0ubuntu1 amd64 ii qtmir-desktop:amd64 0.4.7+16.04.20160208-0ubuntu1 amd64 ii unity8-desktop-session-mir 1.0.12+15.10.20150609-0ubuntu1 all I have some updates for mir-client-platform-mesa4, mir-graphics-drivers- desktop, mir-platform-graphics-mesa-kms7, mir-platform-graphics-mesa-x7, mir-platform-input-evdev5 and unity8. I am going to update system and try to see if these updates fiz the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1545784 Title: Unity8 crashes with Intel Sandybridge on 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1545784/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs