Comment 5 for bug 1288004

Neil Shepperd was too modest to say he produced a quick workaround in https://bugzilla.kernel.org/show_bug.cgi?id=74861. This simple simple fix works for me on a Chillblast Defiant mini laptop which has Haswell/Optimus Architecture, Core i7 Processor and nVidia GTX 765M graphics running Mint 17 (equivalent to 14.04).

The quick fix is to pass i915.disable_power_well=0 on the kernel command line which works around the problem, letting audio play at the correct speed again. After confirmation one can modify /etc/default/grub to make it permanent. Hopefully the commit will soon be reversed.