Sound issues with Dell Latitude 7490 (kabylake)

[Jakob Alvermark]

On 10/3/18 3:06 PM, David Wolfskill wrote:
> On Mon, Oct 01, 2018 at 11:12:25PM +0200, Jakob Alvermark wrote:
>> ....
>> Do the headphones work with this patch?
>>
>> Index: sys/dev/sound/pci/hda/hdaa.c
>> ===================================================================
>> --- sys/dev/sound/pci/hda/hdaa.c    (revision 339076)
>> +++ sys/dev/sound/pci/hda/hdaa.c    (working copy)
>> @@ -5034,11 +5034,13 @@
>>            pincap = w->wclass.pin.cap;
>>
>>            /* Disable everything. */
>> +        /*
>>            w->wclass.pin.ctrl &= ~(
>>                HDA_CMD_SET_PIN_WIDGET_CTRL_HPHN_ENABLE |
>>                HDA_CMD_SET_PIN_WIDGET_CTRL_OUT_ENABLE |
>>                HDA_CMD_SET_PIN_WIDGET_CTRL_IN_ENABLE |
>>                HDA_CMD_SET_PIN_WIDGET_CTRL_VREF_ENABLE_MASK);
>> +        */
>>
>>            if (w->enable == 0) {
>>                /* Pin is unused so left it disabled. */
>> ....
> Thank you!  This addressed the long-standing (Reported:  2015-05-29
> 21:15 UTC) issue I have had with my laptop (Dell Precision M4800), as
> documented in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200526
> -- now updated to reflect the fix.


That's great! Glad to hear it helped.

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?


Jakob