I also confirmed that after upgrade to Vivid 15.04 beta 1 this also happens.
Basically, this means that optimus is useless when the the nvidia card is identified as "3D Controller" instead of "VGA compatible controller". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1381175 Title: vgaarb module not patched To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1381175/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs