[alsa-devel] Backported sbxfi driver, possible fix

[Takashi Iwai]

At Tue, 28 Oct 2008 14:48:01 +0100,
Bjoern Olausson wrote:
> 
> On Tue, Oct 28, 2008 at 08:14, Takashi Iwai <tiwai at suse.de> wrote:
> >
> > Forgot to ask: which SBXFI model?  The product name, PCI ID, PCI SSID,
> > and /proc/asound/cards entry please.
> >
> 01:00.0 0401: 1102:0005
>         Subsystem: 1102:0021
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
> >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 64 (1000ns min, 1250ns max), Cache Line Size: 16 bytes
>         Interrupt: pin A routed to IRQ 21
>         Region 0: I/O ports at 8c00 [size=32]
>         Region 1: Memory at eb800000 (64-bit, non-prefetchable) [size=2M]
>         Region 3: Memory at e4000000 (64-bit, non-prefetchable) [size=64M]
>         Capabilities: [40] Power Management version 2
>                 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000
>         Kernel driver in use: SB-XFi
> 
> 01:00.0 Multimedia audio controller: Creative Labs SB X-Fi
>         Subsystem: Creative Labs X-Fi Platinum
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
> >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 64 (1000ns min, 1250ns max), Cache Line Size: 16 bytes
>         Interrupt: pin A routed to IRQ 21
>         Region 0: I/O ports at 8c00 [size=32]
>         Region 1: Memory at eb800000 (64-bit, non-prefetchable) [size=2M]
>         Region 3: Memory at e4000000 (64-bit, non-prefetchable) [size=64M]
>         Capabilities: [40] Power Management version 2
>                 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000
>         Kernel driver in use: SB-XFi
> 
> 
> >
> >> 2. base_rate value
> >>       rate: 96000 (96000/1)
> >
> > What about base_rate=48000?
> >
> > BTW, I changed now base_rate to 48000 for testing as I got more
> > positive results with it.
> >
> Should I pass this parameter during ./configure or as module parameter?

As a module parameter, either in somewhere modprobe.conf or such, or
via modprobe command line option.

I changed the latest version to use 48k as default, so you can just
grab the latest snapshot, too.

> >> 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
> >
> > What if you do the following (as root)?
> >
> >        # echo "mplayer 0 0 direct" > /proc/asound/card0/pcm0p/oss
> >
> Tested... but gives only white noise, no matter what samplingrate or file....

Weird.  What happens if you force to the sample rate to 48000 via
mplayer's option?


Takashi