Comment # 18 on bug 1194667 from Takashi Iwai

I saw a series of fixes in the latest Linus tree, which look promising.
I'm building a test kernel with those backports in OBS home:tiwai:bsc1194667-3
repo.  Once after the build finishes, the test kernel will be available later
at
  http://download.opensuse.org/repositories/home:/tiwai:/bsc1194667-3/standard/

Please give it a try later.