[alsa-devel] "PM / QoS: Fix device resume latency PM QoS" breaks sound

[Rafael J. Wysocki]

On 10/28/2017 10:10 PM, Chris Clayton wrote:
> Hi,
>
> I pulled the latestchanges from Linus' tree this evening and have found that with the new kernel, sound is not working
> on my laptop. More precisely, the built-in speakers don't produce any sound. Sound does work when I use ear-plugs in the
> headphone socket. It also works via a bluetooth speaker.

This patch should fix it: https://patchwork.kernel.org/patch/10032147/

Thanks,
Rafael