linux-kernel - Re: [Bug #10679] 2.6.26-rc1 regression: e5e1d3cb20034a3cbcfff1f0bae12201aa2ce17e breaks artsd

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Date:	Sun, 18 May 2008 09:49:37 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Stas Sergeev <stsp@...et.ru>
Cc:	Dave Jones <davej@...emonkey.org.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	alsa-devel@...a-project.org
Subject: Re: [Bug #10679] 2.6.26-rc1 regression:	e5e1d3cb20034a3cbcfff1f0bae12201aa2ce17e breaks artsd

At Sun, 18 May 2008 07:13:07 +0400,
Stas Sergeev wrote:
> 
> Hello.
> 
> Dave Jones wrote:
> > More seriously, it doesn't seem that there's any way we can build
> > this driver modular without it screwing up already working systems
> Actually, I have just upgraded
> f8->f9, and guess what? Lost the
> sound... And not because of snd-pcsp,
> but rather because snd-hda-intel
> started to take the first slot
> and snd-intel8x0 takes the second.
> On f8 snd-hda-intel have never been
> loaded for me at all. I don't need
> it, it finds a HDA chip on an ATI
> video board, which it never did before.
> 
> So... it doesn't look like this
> problem is specific to snd-pcsp.
> Anyone can get into that trouble
> it seems.

You can better use slots option for snd module instead of specifying
index in each driver for 2.6.25 or later kernels.  That is,

	options snd slots=snd-intel8x0,snd-hda-intel

will assign the specified drivers in the first two slots.  And this
means also that these two slots are reserved.  The other drivers,
e.g. a hotplugged usb-audio, won't be assigned in these slots even
usb-audio is loaded before intel8x0.

See ALSA-Configuration.txt for details.


Takashi
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