[solved] Pulseaudio (6) and no sound in java

[Manu311]

Hi,

since a month or so I'm getting problems with sound in java-applications (mainly minecraft). I haven't started it in a while so I have no clue when exactly this happens. But it happened after I updated to pulseaudio 6 (since (mainly) StarCraft 2 (wine) got very laggy after a few minutes - due to pa everytime - so I switched to pa6 and that problem got fixed).
To summarize my problem: I have no sound - sometimes from the beginning, sometimes it takes a few seconds.
I tried multiple things:
I switched java versions (icedtea 7 (src and bin) and oracle 1.
I switched back to PA5
I tried different minecraft launchers (I don't have any other java application that makes any sound)
I tried pasuspender and padsp

I can see java registering into pa (pavucontrol sees it) but there is no sound at all (not even visual - sink doesn't matter).
Every other application I run works fine with no problems at all.
There is one issue I've found (which isn't a big deal for me): The front-Audio-Out (Headphones) isn't working anymore, I have to plug my headphones into my speakers.

I've logged my pa output so I can see that minecraft is heavily producing output there. Since it's mainly the same line, I'll just post the lines here:
Extremly often just this:

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(  17.105|   0.011) D: [combine] protocol-native.c: Requesting rewind due to rewrite.

sometimes there is:

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(  17.936|   0.011) W: [pulseaudio] protocol-native.c: Client sent non-aligned memblock: index 0, length 36544, frame size: 24
(  17.936|   0.000) W: [pulseaudio] protocol-native.c: Client sent non-aligned memblock: index 36544, length 12608, frame size: 24

And even less often this appears:

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(  25.623|   0.003) D: [pulseaudio] module-combine-sink.c: [front] total=40,93ms sink=40,93ms 
(  25.623|   0.000) D: [pulseaudio] module-combine-sink.c: [rear] total=40,89ms sink=40,89ms 
(  25.623|   0.000) I: [pulseaudio] module-combine-sink.c: [amplified] avg total latency is 40,91 msec.
(  25.623|   0.000) I: [pulseaudio] module-combine-sink.c: [amplified] target latency is 40,93 msec.
(  25.623|   0.000) I: [pulseaudio] module-combine-sink.c: [front] new rate is 96000 Hz; ratio is 1,000; latency is 40,93 msec.
(  25.623|   0.000) I: [pulseaudio] module-combine-sink.c: [rear] new rate is 96000 Hz; ratio is 1,000; latency is 40,89 msec.

I have to say amplified is my sink which is split into front and rear (so I can have a fixed ratio) which are piped into my real output after.

Oh and I've found this once (the second line repeated multiple times):

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(  26.093|   0.009) D: [alsa-sink-ALC892 Analog] ratelimit.c: 587 events suppressed
(  26.093|   0.000) D: [alsa-sink-ALC892 Analog] flist.c: /var/tmp/portage/media-sound/pulseaudio-6.0/work/pulseaudio-6.0/src/pulsecore/memblockq.c: list_items flist is full (don't worry)

So I hope someone got a clue here - if you need any more informations please tell me.
Thanks in advance

Packages:

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media-sound/pulseaudio-6.0 (X alsa alsa-plugin asyncns caps dbus equalizer gdbm glib gtk ipv6 libsamplerate orc qt4 realtime ssl tcpd udev webrtc-aec)
dev-java/oracle-jre-bin/1.8.0.45 (X alsa)
media-libs/alsa-lib-1.0.29 (python)
media-plugins/alsa-plugins-1.0.29 (ffmpeg pulseaudio)
media-sounds/alsa-utils-1.0.29 (libsamplerate ncurses nls)
sys-kernel/gentoo-sources-3.19.0

[VoidMage]

Well, wrt. "Client sent non-aligned memblock" part: IIRC (but that was awhile ago, so it's a bit dodgy), this was a problem in pulseaudio 6, fixed in git by a series of three patches, starting with "pstream: Don't split (non-SHM) memblocks".

[Manu311]

Thanks a lot - pulseaudio-9999 (6.0-115-g733e4-dirty) fixed the issue .

[VoidMage]

Thanks a lot - pulseaudio-9999 (6.0-115-g733e4-dirty) fixed the issue .

...a solution that's bound to cause more problems than it solves...:sigh:

[Manu311]

Thanks a lot - pulseaudio-9999 (6.0-115-g733e4-dirty) fixed the issue .

...a solution that's bound to cause more problems than it solves...:sigh:

there are always problems with pulseaudio . But until there will be pulseaudio-6.1 or 7 or whatever, I'll stay like this until I find a problem with it.
Sound after all is not a fundamental function which renders my system unbootable - I can always fall back to reinstalling 6.0 or just use alsa.