Re: Sound issues with Dell Latitude 7490 (kabylake)

On 10/6/18, David Wolfskill <david_at_catwhisker.org> wrote:
> On Wed, Oct 03, 2018 at 03:28:45PM +0200, Jakob Alvermark wrote:
>> ...
>> This is probably not a proper fix, but it helps to understand the
>> problem.
>>
>> Could you post the output of 'sysctl dev.hdaa' with and without the
>> patch so we can see what's different?
>> .....
>
> I have run:
>
> 	uname -a && sysctl dev.pcm dev.hdaa
>
> for each of stable/11 and head, both unpatched and patched.  (The
> "unpatched" versions were a bit older -- almost a week, for stable/11;
> from back in August, for head -- but that does not appear to be
> significant in the present case.)
>
> The files are accessible from
> <http://www.catwhisker.org/~david/FreeBSD/m4800/sound/>.
>
> The sysctl output is the same for stable/11 & head:
>
> g1-215(11.2-S)[9] foreach f ( sound_info_* )
> foreach? echo -n "${f}: " && tail +2 $f | md5
> foreach? end
> sound_info_11_patched: 90c26fbae2031174656207f66e1a39ec
> sound_info_11_unpatched: cb9239fb33901086f56527c22576097f
> sound_info_12_patched: 90c26fbae2031174656207f66e1a39ec
> sound_info_12_unpatched: cb9239fb33901086f56527c22576097f
> g1-215(11.2-S)[12]
>
> A unidiff for the "head" versions:
>
> g1-215(11.2-S)[12] diff -u sound_info_12_{un,}patched
> --- sound_info_12_unpatched     2018-10-06 04:04:36.041741000 -0700
> +++ sound_info_12_patched       2018-10-06 04:00:26.681350000 -0700
> _at__at_ -1,4 +1,4 _at__at_
> -FreeBSD g1-215.catwhisker.org 12.0-ALPHA2 FreeBSD 12.0-ALPHA2 #276
> r338043M/338043:1200078: Sun Aug 19 04:32:07 PDT 2018
> root_at_g1-215.catwhisker.org:/common/S3/obj/usr/src/amd64.amd64/sys/CANARY
> amd64
> +FreeBSD g1-215.catwhisker.org 12.0-ALPHA8 FreeBSD 12.0-ALPHA8 #131
> r339212M/339212: Sat Oct  6 03:52:20 PDT 2018
> root_at_g1-215.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY
> amd64
>  dev.pcm.3.bitperfect: 0
>  dev.pcm.3.buffersize: 65536
>  dev.pcm.3.rec.vchanformat: s16le:2.0
> _at__at_ -111,7 +111,7 _at__at_
>       Widget cap: 0x00400781 PWR DIGITAL UNSOL STEREO
>          Pin cap: 0x00000014 PDC OUT
>       Pin config: 0x411111f0 as=15 seq=0 device=Speaker conn=None ctype=1/8
> loc=Rear color=Black misc=1
> -    Pin control: 0x00000000
> +    Pin control: 0x00000040 OUT
>      Connections: 1
>            + <- nid=6 [audio output] [DISABLED]
>
> _at__at_ -134,7 +134,7 _at__at_
>       Widget cap: 0x0040058f PWR UNSOL STEREO
>          Pin cap: 0x00003734 PDC OUT IN VREF[ 50 80 100 GROUND HIZ ]
>       Pin config: 0x411111f0 as=15 seq=0 device=Speaker conn=None ctype=1/8
> loc=Rear color=Black misc=1
> -    Pin control: 0x00000000
> +    Pin control: 0x00000020 IN
>       Output amp: 0x80000000 mute=1 step=0 size=0 offset=0 (0/0dB)
>        Input amp: 0x00270300 mute=0 step=3 size=39 offset=0 (0/30dB)
>      Connections: 2
> _at__at_ -147,7 +147,7 _at__at_
>       Widget cap: 0x0040048b PWR UNSOL STEREO
>          Pin cap: 0x00003724 PDC IN VREF[ 50 80 100 GROUND HIZ ]
>       Pin config: 0x411111f0 as=15 seq=0 device=Speaker conn=None ctype=1/8
> loc=Rear color=Black misc=1
> -    Pin control: 0x00000000
> +    Pin control: 0x00000020 IN
>        Input amp: 0x00270300 mute=0 step=3 size=39 offset=0 (0/30dB)
>
>  dev.hdaa.1.nid25_original: 0x01a1903e as=3 seq=14 device=Mic conn=Jack
> ctype=1/8 loc=Rear color=Pink misc=0
> g1-215(11.2-S)[13]
>
> Peace,
> david

Is there any chance to get these workarounds / fixes for dell machines
in the main tree?


> --
> David H. Wolfskill				david_at_catwhisker.org
> Women (and decent men): vote against supporters of Trump's misogyny!
>
> See http://www.catwhisker.org/~david/publickey.gpg for my public key.
>