When trying out Ubuntu 14.04 LTS last week on the same hardware, the experience went much better. When booting Xubuntu 14.04 LTS off USB, the system quickly booted and the Xfce session started up straight away without running into any problems using the Haswell HD Graphics 5000. The first problem run into though was the Broadcom 802.11ac WiFi adapter not working... The problem comes down to the firmware for the BCM4360 not being present on the Ubuntu image. Fortunately, it's an easily correctable problem (both last year and now) by installing the bcmwl-kernel-source package from the Ubuntu archive. As soon as that was installed, the wireless network was working flawlessly, while until then I was using a USB wired network adapter due to the MacBook Air's lack of Ethernet. There were no other immediate issues and I was moving on to installing the Xfce version of the Ubuntu "Trusty Tahr" on this Apple hardware.
Read more ►