We need to support Intel Broadwell graphics on 14.04(.1) images, and the last missing bit is support in the DRI driver provided by mesa.
Mesa 10.2 will have improved BDW support (and enabled) when it's released in May/June'14, but it's too late for trusty. Upstream release cadence was changed last year, and instead of having bigger releases every six months and bugfix/feature backport point releases they now do 'big' releases every three months, and bugfix releases are even smaller than before. That means there won't be any BDW enablement on a 10.1.x point-release, meaning we need to do that ourselves.
Selecting and pulling a set of commits touching BDW is doable though, and that's what I'm going to do..
Current blocker bug for BDW is https://bugs.freedesktop.org/show_bug.cgi?id=75879
and I'm not sure it makes sense to release 14.04 with it. Don't remember if the software fallback works, needs testing.
so unless we're _allowed_ to do 10.2 as SRU with the "MRE" waiver which mesa has, this'll be some 50+ commits squashed as one distro patch..