Date: Mon, 6 Oct 2008 20:29:36 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: "fluffles.net" <bsd@fluffles.net> Cc: Alexander Motin <mav@freebsd.org>, freebsd-current@freebsd.org, Joel Dahl <joel@freebsd.org> Subject: Re: regression in HDA functionality Message-ID: <200810062029.56713.doconnor@gsoft.com.au> In-Reply-To: <48E9AB21.1010203@fluffles.net> References: <1222892584.00020319.1222880402@10.7.7.3> <200810030945.00843.doconnor@gsoft.com.au> <48E9AB21.1010203@fluffles.net>
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--nextPart1558428.GQlzvQkV5q Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Mon, 6 Oct 2008, fluffles.net wrote: > > eg selecting the HDMI output is pointless if there is no HDMI link > > active (can you detect HDMI status?) > > As i understand, the problem is that with the new patch, more devices > are detected which changes the numbering of the pcm devices, thus > out-of-the-box sound output does not (always) work. > > Maybe a solution would be to *always* register pcm0, so it becomes > the default device. This device is not a real device but rather a > virtual device like a wrapper/link to one of the other "real" pcm > devices starting with pcm1. An algoritm could select which device > pcm0 points to, and be changeable in sysctl, defaulting to "auto" or > something. The auto setting could even be extended to change default > device if situation changes, like a new USB Audio device is plugged > in or the headphones-output is used. It might be hard to correctly > predict the desired behavior for everyone, but getting default audio > output (front speakers; stereo) to work out-of-the-box would be > great. This is already possible - using the hw.snd.default_unit sysctl (changes=20 what /dev/mixer et al do). That is what I was thinking - basically you watch for new sound devices=20 and decide which one to use (or sound events to say something is=20 plugged in) and set the sysctl accordingly. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1558428.GQlzvQkV5q Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iD8DBQBI6eGc5ZPcIHs/zowRAgYaAJ0bInreaBhcnfZjUbKSNig9ki0i5gCdG/pg sVjOh1fB5f2AN/nWur/EUwo= =ZLzX -----END PGP SIGNATURE----- --nextPart1558428.GQlzvQkV5q--
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