I can confirm that tjaalton's above test packages fix the problem on a Skylake laptop with an i7-6700 CPU and an Nvidia 970m GPU when using the nouveau driver.
I installed libllvm3.8_3.8-2ubuntu1.1_amd64.deb from a VT then rebooted, and now I have working Unity again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1564156 Title: xenial: invalid opcode when using llvmpipe To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1564156/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs