Comment # 4 on bug 1231807 from Takashi Iwai

It's difficult to know what broke only from your description.

As a quick test, please boot with the old kernel that did work in the past, and
check whether the problem persists.  You can find the old TW packages from the
history repo:
  http://download.opensuse.org/history/
and you can install it with zypper install --oldpackage option.
If the old kernel works, it's a kernel regression.

OTOH, if the problem persists with the old kernels, it's a breakage in
something else, such as the bluez and related packages.  You can downgrade the
packages similarly from the TW history repo.  Take a look at the zypper log
which packages have been updated on your system.