On Wed, 29 Apr 2009, Pete Woods wrote:

> Well my sound chipset (a RealTek ALC 889A) is completely unbearable
> without using 1.0.19 - it stutters frequently.

You're confusing two separate causes (though I admit it's fairly easy to 
confuse the symptoms for people who aren't intimately familiar with the 
source code).

Firstly, there're mid-layer changes in sound-2.6.git that help immensely 
with the stuttering. You can find the most important of those changes 
already applied in my test kernel (http://kernel.ubuntu.com/~dtchen/). I 
have also proposed those changes (see the kernel-team@ archive) for 
jaunty-proposed.

Secondly, there're controller-level changes in sound-2.6.git that address 
polling and detection. Those changes have not been proposed for 
jaunty-proposed yet (but feel free to do so!).

Thirdly, it's important to note that not all audio anomalies are resolved 
even with daily (un)stable snapshots of git HEAD for sound-2.6. The audio 
stack is evolving, and as various components shift around jaunty's frozen 
userspace (since people tend to want sound working and tend to compile 
random stuff), it's very much a moving target.

Lastly, providing [frequently] updated alsa-kernel bits is difficult in a 
PPA, because several recent changes have bumped the symbol exports, which 
results in an ABI bump in the linux image. One essentially ends up needing 
to rebuild the linux image, provide new headers, and provide a new 
restricted-modules image. We went through a lot of pain during hardy when 
we shipped ALSA in linux-ubuntu-modules.

I will, however, look into providing snapshots compiled against 
jaunty-updates/jaunty-security and jaunty-proposed.

-- 
New upstream release alsa 1.0.19
https://bugs.launchpad.net/bugs/324646
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to