Jack detection testing - report

[David Henningsson]

On 01/24/2012 09:23 PM, Chris J Arges wrote:
> On 01/23/2012 07:28 AM, David Henningsson wrote:
>> According to the wiki page
>> https://wiki.ubuntu.com/Audio/PreciseJackDetectionTesting
>>
>> We've tested the new jack detection backport kernel and PulseAudio on
>> seven machines. One user reported a regression; which turned out to be
>> one bug in PulseAudio and one bug in the kernel. I've fixed the
>> PulseAudio one myself.
>>
>> For the kernel patch I was in contact with upstream (it was an upstream
>> bug), who provided a patch which I've backported. A new tree has been
>> pushed [1] and I'm awaiting results from the reporter that this resolves
>> his regression.
>>
>> Given his regression is resolved, do you think the patches are ready for
>> inclusion into the 12.04 kernel? Would be nice to have the new stuff in
>> before Alpha 2, as that will give us even more testing of the patches in
>> an early stage.
>>
>
> David,
> I just tested the latest build kernel as provided by Andy here :
> http://people.canonical.com/~apw/jack-detection-precise/
>
> it causes pulseaudio to crash on startup. Also audio no longer works for
> me on this laptop. My alsa-info is included in the wiki. Let me know
> what info you need and I can help debug this.
> Thanks,

Hi and thanks for testing,

I think both you and and Colin got stung by the same PulseAudio bug, 
which I was able to resolve this morning. I've pushed a new PulseAudio 
version to the PPA, but it's not scheduled to build until tomorrow :-(

To confirm that the bug is actually fixed, you can either wait for this 
build, or compile PulseAudio yourself, or make the following changes:

edit
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-0.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-1.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-2.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-3.conf

For every one of the above files, change

name = HDMI/DisplayPort

to

description = HDMI / DisplayPort

in short, "s/name/description".

Please let me know your result of doing this. Thanks!


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