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Date:      Tue, 23 Jan 2001 17:35:45 -0500 (EST)
From:      <Florent.Parent@viagenie.qc.ca>
To:        <mobile@freebsd.org>
Subject:   Re: IBM ThinkPad A20p (sound)
Message-ID:  <Pine.BSF.4.31.0101231722390.1049-100000@blues.viagenie.qc.ca>
In-Reply-To: <20010116134916.C394@jellyfish.codefactory.se>

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I also have an A20p running FreeBSD-4.2 STABLE. Here's my findings:

1- Tried the pcm driver: no success

2- Tried the OSS driver from 4Front tech. (http://www.opensound.com/)
I was able to get some sound with the demo driver, but the system hangs
when I start the X server.

The reason is that the A20p shares the same IRQ between the graphics
adapter, a pcmcia bus and the sound card. You can go in the BIOS under the
PCI configuration to select the IRQ per PCI bus, but the it seems that the
sound/pcmcia/graphics are stuck on the same PCI bus (I've put irq 5 for
the 1st PCI bus):

/kernel: pci1: <ATI model 4c46 graphics accelerator> at 0.0 irq 5
/kernel: pcic-pci0: <TI PCI-1450 PCI-CardBus Bridge>
mem 0x50000000-0x50000fff irq 5 at device 2.0 on pci0
/kernel: csa0: <Crystal Semiconductor CS4614/4622/4624 Audio
accelerator/4280 Audio controller> mem 0xf0000000-0xf00fffff,
0xf0122000-0xf0122fff irq 5 at device 5.0 on pci0

Also note that you have to deactivate the BIOS APM support (see url below)

I would really love to get that sound card running. Question is: can
FreeBSD support a sound device that shares its IRQ ? A collegue of mine
has the same laptop running Linux and the sound device works. Check out
http://www.zhlive.ch/zhl_contents_linux.html for more info

If anyone has more info, please post to the list.

Florent.

On Tue, 16 Jan 2001, Anders Andersson wrote:

> Hi!
>
> I run 4.2-STABLE on mu thinkpad a20p, works like a charm, except sound.
>
> dmesg:
>
> csa0: <Crystal Semiconductor CS4614/4622/4624 Audio accelerator/4280
> Audio controller> mem 0xf0000000-0xf00fffff,0xf0122000-0xf0122fff irq 11
> at device 5.0 on pci0
> pcm0: <CS461x PCM Audio> on csa0
>
> But when trying to play something, all I get is:
>
> (nothing)
>
> no sound, nothing in logs.
>
> Any hints?
>

-- 
Florent Parent
Viagénie inc.  http://www.viagenie.qc.ca
+1.418.656.9254




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