[Bug 75537] [hsw] Hdmi audio is buggy

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75537

--- Comment #20 from tmacalp <tmacalp at gmail.com> ---
I'm still not entirely convinced that the bug I'm experiencing is the one
originally reported, but it looks like my issue has been taken care of
upstream.  

Here is the official bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=74861

It looks like there are a few work arounds.  Both of these work for me.

* If you suspend your system and resume it, hdmi audio will be normal until the
next power cycle

* You can pass the following option on the kernel command line to avoid the
issue
 snd_hda_intel.power_save_controller=0

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