[AG-TECH] HD audio & USB audio on Linux?

[Andrew Ford]

The chips in these machines are the Realtek ALC885, or 882... device manager
says 882, but the Ubuntu sound preferences app and RAT both see 885. From
what I've gathered from some quick googling, it looks like this one *might *be
supported in 2.6.22, but I've seen talk of mic input via ALSA not working.
However, RAT doesn't see ALSA at all in the audio devices list, just OSS.
Should I bite the bullet and upgrade to 8.04 just to see what happens?

--Andrew

On Wed, Apr 16, 2008 at 4:41 PM, Christoph Willing <c.willing at uq.edu.au>
wrote:

>
> On 17/04/2008, at 5:33 AM, Andrew Ford wrote:
>
>  Hi,
> >
> > I can't get RAT to work with the integrated HD audio chipset in some of
> > our machines - listen works but talk doesn't. I was pretty much expecting
> > this running on Linux (Ubuntu 7.10), partially since it's a known problem on
> > Windows. I'm wondering if anyone has actually gotten these chipsets to work
> > on any platform (is there any progress from SUMOVER as far as supporting
> > them?)
> >
>
>
> Andrew,
>
> The HD audio chipsets are something of a moving target and support for a
> particular chipset depends on the kernel version. The kernel version for
> 7.10 is 2.6.22-14. The release of Ubuntu 8.04 is imminent (24th April, I
> believe) and it currently uses kernel version 2.6.24-12 so many more
> chipsets will be supported. We have at least one machine whose audio chipset
> is not fully supported by 7.10 but already works correctly with 8.04 - maybe
> your chipset will be in this category. The 8.04 beta is available via:
>  http://www.ubuntu.com/testing/hardy/beta
>
> AccessGrid packages for 8.04 are unofficially available at the usual place
> - see the instructions for gutsy and replace "gutsy" with "hardy".
>
>
> chris
>
>
>
>  and if not, what USB audio interfaces work well with RAT on linux? I've
> > been looking at the Edirol UA-25 or 5, which are confirmed to work with the
> > usb-audio module but I don't know whether RAT supports something like that.
> > Anyone have any recommendations?
> >
> > --Andrew
> >
>
> Christoph Willing                        +617 3365 8350
> QCIF Access Grid Manager
> University of Queensland
>
>
>
>
>
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