[alsa-devel] Backported sbxfi driver, possible fix

Bjoern Olausson lkmlist at gmail.com
Tue Oct 28 01:10:43 CET 2008


On Mon, Oct 27, 2008 at 07:28, Takashi Iwai <tiwai at suse.de> wrote:
> It'd be helpful if someone can summarize the working and non-working
> cases.  For example,
>
> global info:
> 1. sbxfi driver version (date & HEADs)
> 2. base_rate value
> 3. system details (x86-64, distro, kernel version, etc)
>
> for each app:
> A. Application name / version
> B. working or not-working, problem descriptions
> C. ALSA or OSS (you can see it in /proc/asound/card*/pcm0/sub0/hw_params)
> D. period_size and buffer_size (ditto, or in kernel message)
> E. any special options
>
> Maybe also nice on Wiki...
>
>
> thanks,
>
> Takashi
>

1. sbxfi driver version (date & HEADs)
	10/27/2008 05:55:00 PM

	./HEAD
	7d1c628613fa81595d145c897530e2eb0fbbf922 Merge commit 'stable/master'
	390dde1aeba0aec19bd121dfcb2147a1bc721756 jack - fix build with older kernels
	2e5fb80ee0cfed9c9ec4b977822b13d7a8d4790f Merge commit 'stable/master'
	d338c02cda2d5525e7ad3b35a2d51438c8fc8f08 x86 mach: test for
mach_apic.h to skip empty directories
	75b71fe1b618af2250692144205e71dede39aeb0 Merge commit 'stable/master'
	795b6cd7e0006e2c62a9c7004555b5b22c9e4329 alsa-info - Fix quoting
	8682b8b4ced855b01639d85098ca7de23db87c3d Merge branch 'topic/snd-hrtimer'
	46195d51d453ee7f1579028ba0407efafe03b3d4 snd-hrtimer - Add kernel
version dependency 2.6.24 or later
	058cbcd459dcfa90b40587932d4a2069497fa849 Merge branch 'topic/snd-hrtimer'
	8cadf99a5ca45aef2c4e7970e71bf1571163018d Merge branch 'topic/tools'

	./alsa-kernel/HEAD
	16fb0167b6a59608defbc164dad266613fae1fc5 Merge commit 'stable/master'
	58e5beb32b45cf7a09733886f600fe6442586cad Merge branch 'topic/fix/hda'
	e044c39ae258678d6ebb09fccb2a0fdf7ec51847 ALSA: hda - Restore default
pin configs for realtek codecs
	ec99a09ebe531c8d211b51d9e33d3a7341080e17 Merge branch 'topic/fix/misc'
	2f1e593d4209d0194f9639c5d11aa91171435963 sound: use a common working
email address
	07580a206c3755724fea57bc84a4a4064ee62c00 Merge commit 'stable/master'
	b69dffcb0a963ff7f0d9bad391c2c9bae37a837e Merge branch 'topic/hda-next'
	74aeaabc3e452b29bc1b9eac5aa48923569f8a4e ALSA: hda: add support for
jack detection on IDT codecs.
	50a9f7905fb3e6ae25e80ba443a14d878caef0c9 ALSA: hda: add
snd_hda_get_jack* functions
	282cd76ffca781013151344c4b0f9229e9ea3c35 ALSA: hda: dynamic jack id

2. base_rate value
	rate: 96000 (96000/1)

3. system details

	Gentoo Linux
	Portage 2.1.4.5 (default-linux/amd64/2007.0/desktop, gcc-4.1.2,
glibc-2.6.1-r0, 2.6.27.3-unpatched x86_64)
	=================================================================
	System uname: 2.6.27.3-unpatched x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
	Timestamp of tree: Sun, 26 Oct 2008 16:18:01 +0000
	distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port
3632) [disabled]


A)	MPlayer dev-SVN-r27725-4.1.2
B)	Working, but horrible, crackeling sound at samplingrate 11025Hz
22050Hz 44056 44100 47250 5000(less than the others) 50400 8000 88200
(3200, 48000 and 96000 are fine)
	checked with WindowsXP. In XP the sound is nice and clear. So the
files are good.
C)	OSS (see bug-mplayer file)
D)	See bug-mplayer file
E)	nothing

A)	Xine 0.99.5
B)	No samplingrate is clear, all is crackeling....
C) 	ALSA I guess (bug-mplayer file)
D)	See bug-xine file
E)	nothing


So one wired thing:
I first tested mplayer... all samplingrates except 3200, 48000 and
96000 were bad.
Then I tested xine... everything was bad.
Then I tested mplayer again to dump the info into the files (bug-mplayer)
suddenly all samplerates were fine.... testing again and all went bad again?
But basically you can say everything is crapy right now.

Kind regards
Bjoern
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