It appears to be a kernel issue as the system now boots when booting the previous 14.04 kernel from before the upgrade, but hangs when booting the 16.04 kernel with flashing capslock LED again, kind of like described here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/303276 The strange thing is that the 16.04 kernel only started playing up when the intel microcode package was installed, so I am going to try to uninstall it, boot the 16.04 kernel and see what that does. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1662097 Title: lenovo t500 kernel hangs with flashing caps lock LED after installing intel-microcode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1662097/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs