On 03/30/2017 14:30, Pete Wright wrote:
On 03/30/2017 14:26, Dimitry Andric wrote:
On 30 Mar 2017, at 20:18, Pete Wright <p...@nomadlogic.org> wrote:
I have a new Kabylake based Intel laptop running CURRENT (well
drm-next). Everything has "just worked" so far except audio. Here is
the output of /dev/sndstat:
$ cat /dev/sndstat
pcm0: <Realtek (0x0225) (Analog)> (play/rec) default
pcm1: <Intel Kabylake (HDMI/DP 8ch)> (play)
No devices installed from userspace.
I am unable to get audio output on the laptop's speakers using the
Analog device at pcm0, I was wondering if this was due to the Realtek
device not being recognized? I would expect the model number or
something similar as opposed to "0x0225". Here's the output of
pciconf for reference:
$ pciconf -lv
Hmm, that output didn't contain any Realtek device? What does dmesg
say about the pcm devices? Also, can you get any sound via pcm1?
yea i thought that was odd as well. here's what i think is relevant
from my dmesg buffer:
$ dmesg|grep hdaa
hdaa0: <Realtek (0x0225) Audio Function Group> at nid 1 on hdacc0
pcm0: <Realtek (0x0225) (Analog)> at nid 33 and 18 on hdaa0
hdaa1: <Intel Kabylake Audio Function Group> at nid 1 on hdacc1
pcm1: <Intel Kabylake (HDMI/DP 8ch)> at nid 3 on hdaa1
i have not attempted to output audio via pcm1 via an HDMI connected
panel - but I can test that tonight. using pcm1 does *not* work with
the headphone jack or laptop speakers but i think that's expected.
hrm no luck with HDMI either. FWIW this is the specific chipset:
I grep'd through the source tree and didn't see any references to this
chipset, I suspect this is a new driver/codec that needs to be created
or imported? It looks like linux only added support with the 4.11 kernel...
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