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List:       openbsd-misc
Subject:    Re: Audio codec support for new(er) Framework laptops?
From:       Avalon <avalonw () posteo ! net>
Date:       2021-10-29 21:51:34
Message-ID: CAE3ADF5-FE81-4A6E-B77E-629F8E958B18 () posteo ! net
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Thank you! :)

On October 29, 2021 4:31:29 AM CDT, Alexandre Ratchov <alex@caoua.org> wrote:
>On Fri, Oct 29, 2021 at 09:13:57AM +0000, avalonw@posteo.net wrote:
>> Hi Misc!
>> 
>> Does anyone know whether the Tempo 92HD95B audio codec is supported?
>> 
>> https://temposemi.com/products/pclaptop-hd/92hd95/
>> 
>> I'm considering getting the Framework laptop and Joshua Stein's
>website
>> indicates that at this point, it's pretty well supported
>> 
>> https://jcs.org/2021/08/06/framework
>> 
>> But Framework is changing audio codecs on their next batches of
>> machines.
>> 
>> https://frame.work/blog/solving-for-silicon-shortages
>> 
>> Thus far, I haven't been able to find a way to check whether the new
>> audio chip is supported, as "fully supported in both Windows and
>Linux"
>> doesn't actually say much, and Tempo's answer to "how do I get a
>driver"
>> is "Ask our OEM partner that actually made the computer in question"
>> 
>> I *have* identified that the chip is compatible with Intel's HD audio
>> interface, so from what I'm reading in azalia's man page, I think it
>> *should* have support already under azalia, but I'll admit, the
>> technical specs go a bit over my head.
>> 
>> If anyone can clarify this for me, I'd really appreciate it.
>> 
>
>Short answer: virtually any HDA codec is supported and there are good
>chances that sound will just work on this laptop.
>
>Long answer: The HDA spec. allows the driver (i.e. azalia(4)) to
>control all HDA-compatible codecs in a uniform way, so any past or
>future codec is supposed to just work with the current driver,
>provided the codec is HDA compatible.
>
>There are rare hardware bugs or "creative" ways of connecting the
>codec to the HDA host that cause problems, most of them are handled by
>quirks in the azalia(4) driver.
>
>There are few laptops that have HDA codecs that require firmware to
>make advanced features work.  Certain recent laptops come with
>microphones that are not physically connected to the HDA codec
>(instead they use a secondary audio device OpenBSD doesn't support
>yet).

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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