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From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Subject: Re: Intel SST and HP ElitePad 1000 G2
Date: Thu, 26 Nov 2015 10:35:49 -0600
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To: Jorge Fernandez Monteagudo <jorgefm@cirsa.com>, "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
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On 11/26/2015 01:43 AM, Jorge Fernandez Monteagudo wrote:
> Hi,
> 
> I've regenerated from clean state the 4.3.0 but still no sound. Attached
> dmesg, lsmod and .config used.
> 
> From dmesg I can see
> 
> [    4.357803] intel_sst_acpi 80860F28:00: No matching machine driver found

It's probably that you didn't re-add the weird HID in the sst_acpi.c file as you did previously.
If you want to send me your patches (offlist) i can take a look and merge them
with my soon-to-be-submitted ones.

> I think this kernel branch it's not well suited for the i915 graphic driver. I get
> some kernel warning that I don't see in 4.2.5. The freeze I'm seeing it's
> related to the graphic driver not the audio.

4.3 works fine for me, and all this code can be back-ported to 4.2 if need be.