Le 24/08/2010 12:11, Cory K. a écrit :
On 08/24/2010 04:56 AM, David Henningsson wrote:
Hi,
Adding users to the audio group is not recommended for reasons I've just
documented here: https://wiki.ubuntu.com/Audio/TheAudioGroup
Looking at ubuntu studio documentation, you seem to recommend people to
add themselves to the audio group pretty much (found by doing a search
for "audio group" on help.ubuntu.com), so can we remove it? Change it to
something else?
That's under the "community" section. Something we don't control.
Also, it was nessesary in the past because of permissions needed for
some soundcards. (firewire I believe) From what I have seen, our users
are folks who have "single-user" systems. (this is actually our target
audience and setup) So your "Implications" section will not apply to them.
Someone with more current grasp on the situation should chime in. As
long as a solution can be found that works for everyone we can change
the documentation. In the end, adding users still might be needed for
corner cases and those folks won't care. They'll just want their gear to
work. :)
-Cory K.
David, Cory,
Their would be one case, when a user would have his workstation in a
dedicated room for noisy hardware, and use a remote connection with a
low power computer in the studio, where this could be a problem as David
described.
With the current LTS release, the use of the "audio" group is for a real
time use of jackd. The document you may have found is this one, I guess:
https://help.ubuntu.com/community/UbuntuStudioPreparation#Real time
(-rt) and Low latency (-lowlatency) kernels
<https://help.ubuntu.com/community/UbuntuStudioPreparation#Real%20time%20%28-rt%29%20and%20Low%20latency%20%28-lowlatency%29%20kernels>
For firewire sound cards, ffado driver needs user to be member of the
"video" group, as a firewire sound card is considered to be similar as a
"dv" camera by firewire libraries.
Maybe, we just have to change "audio" group for "realtime" or something
like that. That would mean changing the post configuration of jackd
installation package, wich create the "audio" settings/entries for real
time use. If you think this is compulsory, then, it is easy to do it:
ask the jackd maintainer to change the group name, I and other update
their documentation and it's done.
To "fine tune", a dedicated possibility should be added to "User and
Group Manager Privileges" GUI, and maybe the "Use audio devices" should
be renamed for "Use audio devices on remote connection" or something
like that.
Toine
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