Buggy sound

[Daniel Gimpelevich]

On Apr 2, 2006, at 10:00 PM, Jamie Guinan wrote:

>
> Its compiled-in at the moment.

With 2.6 kernels, it appears to be generally a bad idea to compile most 
stuff in, but YMMV.

> An ALSA port would be interesting, if I had the time/skill.

Like I said in an earlier message, someone has suggested that it 
wouldn't take much of either:
http://lkml.org/lkml/2006/1/20/427

> I just noticed this FAQ entry about sound and DMA, but I'm not
> sure if its related,
>
>   http://www.netwinder.org/faq.html#1.20
>
> -Jamie

I was, perhaps foolishly, assuming that you hadn't dared use DMA for 
sound for that very reason...

> On Sun, 2 Apr 2006, Daniel Gimpelevich wrote:
>
>> I had some sound problems, but they were very different from yours. 
>> Since I
>> have not yet tried a 2.6 kernel on it, I'm guessing that may have a 
>> lot to do
>> with it. In my experience, OSS drivers cause no end of problems under 
>> 2.6
>> kernels. A quick&dirty port of the driver to ALSA would probably 
>> improve at
>> least something. Anyway, is the driver compiled into your kernel, or 
>> a module?
>> If a module, which mechanism are you using to load it?
>> -- 
>> "No gnu's is good gnu's."   --Gary Gnu, "The Great Space Coaster"
>>
>> On Apr 2, 2006, at 11:07 AM, Jamie Guinan wrote:
>>
>>>
>>> Hi!
>>>
>>> Glad to see netwinder.org up and alive again, I hadn't bothered
>>> to look in ages.
>>>
>>> My trusty NW is still doing firewall duty (since 1999).
>>>
>>> But one problem I'm having is with the sound driver.  Maybe 50% of 
>>> the
>>> time it plays white noise instead of clean audio.  Here's my test,
>>>
>>>   # while true; do bplay donk.wav ; sleep 0.5; done
>>>
>>> And here's a recording from about 1ft away, and a copy of donk.wav,
>>>
>>> http://www.bluebutton.com/misc/buggysound.ogg
>>> http://www.bluebutton.com/misc/donk.wav
>>>
>>> I have a little program where I'd like to play donk.wav whenever a
>>> packet is dropped by the firewall, but the white noise is like
>>> fingernails on a chalkboard.  :)
>>>
>>> I'm running gentoo, with a vanilla 2.6.16 kernel, cross-compiled with
>>> gcc 3.4.5.  My board info from /proc/cpuinfo,
>>>
>>> Hardware        : Rebel-NetWinder
>>> Revision        : 51ff
>>> Serial          : 0000000000000757
>>>
>>> Has anyone experienced sound problems like this?
>>>
>>> Thanks,
>>> -Jamie
>>>
>>> _______________________________________________
>>> Netwinder mailing list
>>> Netwinder at netwinder.org
>>> http://lists.infradead.org/mailman/listinfo/netwinder
>>
>>