Ben, unfortunately this is the default Ubuntu kernel without this feature. You need to use version 3.16.0-28.37hf73386v20141212b2 to be able to benefit from it.
Do install this version you should do: sudo apt-get install linux-image-3.16.0-28-generic=3.16.0-28.37hf73386v20141212b2 and then choose this kernel from the GRUB boot menu. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1104230 Title: DisplayPort 1.2 MST support is missing in the Intel driver To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1104230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs