[AG-TECH] Does OSS Free support full duplex?

richardc at cs.utah.edu richardc at cs.utah.edu
Tue Jun 18 14:00:30 CDT 2002

Yep. I wonder if there's something similar to the emu-dspmgr for the 
PCI128 driver... I'll snoop around and get back to you.


On Tuesday, June 18, 2002, at 12:27 PM, Leslie Arvin wrote:

> richardc at cs.utah.edu wrote:
>> Hi all,
>> I've just loaded a machine with RedHat 7.2, and I'm getting feedback
>> problems. This is indicative of a problem with the hardware loopback
>> enabled on the PCI128 cards.
>> I haven't loaded the commercial OpenSound drivers yet, because I was
>> hoping the free OSS drivers were more robust with this release of 
>> RedHat.
>> Is there a magic flag or setting I haven't touched? Or, do I need to
>> purchase the opensound drivers?
>> -Richard
> We encountered the problem with the SoundBlaster PCI 512 sound cards
> with the RedHat 6.2 AGiB setup where the line-out from the card was
> being looped-back to line-in.
> Both the oss driver and emu10k1 driver exhibited this problem.
> The following commands will turn off this loopback with the emu10k1
> driver:
>   /usr/local/bin/emu-dspmgr -r"Analog L:Rear L"
>   /usr/local/bin/emu-dspmgr -r"Analog R:Rear R"
> If anyone knows how to turn this off with the oss driver, I'd
> appreciate the solution.  We're currently doing fine with the
> emu10k1 driver, but it's nice to have options.
> Is this case similar to your problem?
> -- Leslie Arvin
>    arvin at stat.purdue.edu
>    Purdue University

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