[Pkg-alsa-devel] Bug#770122: Bug#770122:

[Elimar Riesebieter]

* Teutone <whiteteutone at gmail.com> [2014-11-22 15:06 +0100]:

> On Sat, 2014-11-22 at 12:57 +0100, Elimar Riesebieter wrote:
[...]
> > This looks like a driver bug. As I remember you're using linux-3.16.
> > It's pretty new, though. In sid we have linux-3.17 images which
> > worth to try. If that not helps I'd forward this bug to the kernel
> > team with your attention please. To browse the ALSA BTS [0] might be
> > helpful as well.
> 
> I looked through the changelogs on

> http://metadata.ftp-master.debian.org/changelogs//main/l/linux/linux_3.17-1~exp1_changelog
> and http://kernelnewbies.org/Linux_3.17 and could not find any
> news about audio drivers - plus I read the warning about data loss
> and experimental state of 3.17, and I'm feeling unsure if it's
> safe for me to use it, I am not that good at Linux yet... if you
> say it's relatively safe could you give me a few hints how to do
> the kernel update safely or point me to the direction where I can
> read about how to do it, please?

Well, linux-3.17 is the stable mainline kernel. It's not
experimental and there are no known bugs about data loss. If you're
not comfortable to try 3.17 I can tell you that this kernel runs
fine. (3.14.25, 3.17.4, 3.18-rc5 here). But I won't force you to use
it. You can otherwise try some Live-Distros (Knoppix, GRML a.o) to
check your soundcard. Those are not running 3.17!

How to install Debian's 3.17:
As root:
# echo "deb http://ftp.de.debian.org/debian/unstable main non-free contrib" >> /etc/apt/sources.list.d/teutone.list
# apt-get update
# apt-get install -t unstable linux-image-3.17-1-amd64

Reboot to load the new kerenl and test sound.

To reverse it:
# rm -rf /etc/apt/sources.list.d/teutone.list
# apt-get update
# apt-get remove --purge linux-image-3.17-1-amd64

Thats it ;-)

> 
> > 
> > > Only difference, I can't use media buttons to control volume when
> > > pulseaudio is turned off (guess that's normal)
> > 
> > Thats not normal. My thinkpads are working with a straight ALSA. For
> > me there is no advantage to run pulseaudio. The "media buttons" are
> > working correct. Same on my powerbook (Yeah, it's PPC arch ;-)).
> 
> Hmm. That's strange then... something seems really wrong with this
> Macbook ***** :P I recently noticed that I have a slight sound problem
> with my speakers, too - in Mac OS + Windows I get decent sound from
> right and left built-in speaker; in Debian Jessie I only have the right
> speaker working correctly, but the left one is a lot quieter... as if
> it's also not working 100% with the driver...

If there is a hardware bug you can check live distris as mentioned
above. But there we can't help. Success to your hardware is needed,
though....

> 
> > 
> > [0] https://bugtrack.alsa-project.org/alsa-bug
> 
> I'm unable to open that site - it seems to be down? Even with simple
> http:// it just gives me a 404 Error... is it reachable for you?

It looks like it is temporarely down :(

Elimar
-- 
 On the keyboard of life you have always
  to keep a finger at the escape key;-)