Wrong information of release note for 10.10 (and a little about Natty)

[David Henningsson]

On 2010-10-21 18:04, Takashi Sakamoto wrote:
> Hi,
>
> I translated Maverick's release note for Japanese users. I've already
> put my text on Ubuntu Japanese Community Wiki.
> https://wiki.ubuntulinux.jp/UbuntuStudioTips/ReleaseNotes
>
> Then I have some questions.
>
> 1. kernel flavour
>
> According to Alessio's message, we cannot use -lowlatency and -realtime
> for Maverick and I found there are no kernel packages for Maverick in
> his PPA.
>
> https://lists.ubuntu.com/archives/ubuntu-studio-devel/2010-October/002695.html

If we're going to push for having a -lowlatency kernel flavour in Natty, 
it would be good to know if anyone is using it today, and what 
experiences you have of it. Tell us what you can do with the lowlatency 
kernel, which you can't do with the generic one.

> 2. Audio group
>
> I think MusE needs for users to join in audio group. In my machine, I
> can't start MusE if I'm not in audio group.

It would surprise me if MusE sets such a demand directly.

To summarise, you shouldn't need to be in the audio group to get access 
to the audio device(s), since that is handled via console-kit.

Nevertheless, there is still the jackd configuration issue, that 
(optionally - IIRC), sets real-time privileges to everyone in the audio 
group. Also, there are some guides out there telling you to do the same 
in /etc/security/limits.conf. So for this purpose, some people might 
want to be in the audio group.
However - although convenient in some cases, I don't think that it is a 
good idea in the long run, and it might be addressed in Natty, we'll 
discuss this in the UDS-N session.

The UDS-N session, please participate:
https://blueprints.launchpad.net/ubuntu/+spec/multimedia-platform-n-pro-audio-secured

As a reference, my write-up about the audio group: 
https://wiki.ubuntu.com/Audio/TheAudioGroup

-- 
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic