[FreeNX-kNX] Sound only as root

[Gregory Carter]

Joseph Jamieson wrote:
> I don't believe that to be true - perhaps if you can just load the core
> OSS audio modules it would be created.   Since no sound is being output
> from the server, surely you're not expected to insert a SoundBlaster
> card into a rack mount box.
>
>   
Well, most 1U severs today come with AC'97 audio onboard.   At least all 
of my SuperMicro boxes do have AC'97 audio chips.

No need for SoundBlaster card.
> /dev/dsp gets "hooked" or intercepted by esd when an app is run under
> it.
>   
You mean, sort of like treating a sound card like a remote printer?

MMMmm.  Sounds possible.
(Pun there...if you didn't catch it, you really need to take off early 
because it is one of my better ones.)

> Otherwise, if you have esd aware apps it technically should work without
> /dev/dsp.   Getting that to work at all seems hit or miss.
>
>   
Has anyone on the list tried to redirect sound to a ALSA or ESD server 
from a machine that is playing the sound app remotely to your local 
desktop with no sound hardware on the server?

I have never thought of attempting such a dastardly deed, depriving my 
server vendor of the profits from a sound card sold with every server I 
purchased so far.

But I could always put the money in my lunch jar and have a pizza or 
something I suppose!

Looking at my invoice, the last system I purchased the motherboard diff 
between a AC97 and without is like $14 dollars.

Baaaarely enough for dinner out!

> I wonder what NoMachine support would have to say about this one.  I'd
> imagine that pre-sales support could explain how this is done.  After
> all, they sell a commercial product and I'd imagine that this question
> has popped up.
>
>
>   

> -----Original Message-----
> From: Gregory Carter [mailto:gcarter at aesgi.com] 
> Sent: Thursday, March 22, 2007 2:58 PM
> To: User Support for FreeNX Server and kNX Client
> Subject: Re: [FreeNX-kNX] Sound only as root
>
> Well, obviously I think if you are logging into this server and running 
> programs on it via remote NX client access, then yes, you need to have a
>
> sound card on the server otherwise there is no sound output to redirect.
>
> -gc
>
> Paul van der Vlis wrote:
>   
>> Gregory Carter schreef:
>>   
>>     
>>> Who owns /dev/dsp?
>>>
>>> I am not sure what version of Linux Distro your using, but typically
>>>       
> you 
>   
>>> have to have permission to open the device.
>>>
>>> Normally for example:
>>>
>>> ls -l /dev/dsp
>>>
>>> crw------- 1 gcarter root 14, 3 Mar 20 09:04 /dev/dsp
>>>
>>> I have writes to read/write on my personal system, but nobody else
>>>       
> has.
>   
>>>     
>>>       
>> On the server, there is no soundcard and no /dev/dsp...
>> Maybe this is the problem.
>>
>> But the thinclient has a soundcard and a /dev/dsp. The user works on
>>     
> the
>   
>> client as root (this is normal on this type of thinclient), so I don't
>> think there is a problem on the client.
>>
>> Do I need a soundcard or a /dev/dsp on the server?
>>
>> With regards,
>> Paul van der Vlis.
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>
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