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Date:      Tue, 2 Oct 2018 09:36:41 +0200
From:      Jakob Alvermark <jakob@alvermark.net>
To:        "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net>, Johannes Lundberg <johalun0@gmail.com>
Cc:        freebsd-current <freebsd-current@freebsd.org>
Subject:   Re: Sound issues with Dell Latitude 7490 (kabylake)
Message-ID:  <d830d705-566d-3cbc-5e05-e4fa00fa6b38@alvermark.net>
In-Reply-To: <201810011643.w91Gh2VH092607@pdx.rh.CN85.dnsmgr.net>
References:  <201810011643.w91Gh2VH092607@pdx.rh.CN85.dnsmgr.net>

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On 10/1/18 6:43 PM, Rodney W. Grimes wrote:
>> Hi
>>
>> While sound work out of the box (with headphone switching) on the 1-2 year
>> older Latitude 7270, it does not on my new machine.
>>
>> The internal speaker works fine. If I plug in external speakers in the
>> headphone jack, sound still goes to the internal speaker while a very load
>> buzz comes from the external speakers.
>>
>> Do we have a solution for this?
> I do not believe we have anything that detects stuff plugged into
> and removed from the newer sound stuff that needs switching to
> change from internal to external speakers.
>
> I think you need to do what I have to do when I plug in external
> speakers on my thinkpad x230:
> sysctl hw.snd.default_unit=1
>
> And when I unplug them I have to do:
> sysctl hw.snd.default_unit=0
>
> to switch back to the internal speakers.


Hi Rod,


Can you post the output of 'sysctl dev.pcm' and 'sysctl dev.hdaa'





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