Red Hat Bugzilla – Bug 441063
Multiple, sequential sound clips can't be played by Java or other applets
Last modified: 2009-07-14 11:57:57 EDT
Description of problem: When attempting to play various games on pogo.com, which
are Java-based applets, some of the initial sound effects play fine, but after a
moment, no further sounds are heard. Similarly, if I am using the user desktop
management GUI to configure event-driven sound effects, I hear a light hiss
after I test-play each sound - if I wait until the hiss disappears (typically
3-4 seconds after the sound effect itself has stopped), I can then play another
sound. If I don't wait, and try to play another one right away, I get nothing.
However, in both instances (Java and menu), normal sound effects do play, such
as when I logout. Problem happens under both KDE (my usual desktop mode) and
under GNOME (which I tried today to verify problem).
Version-Release number of selected component (if applicable):
Fedora Beta (installed from DVD), with all updates through 1530Z 5 Apr 2008.
How reproducible: Always :-(
Steps to Reproduce:
1. Log in as ordinary user under GNOME or KDE
2. Bring up Firefox (untried under Konqueror)
3. Visit http://www.pogo.com and pick a game to play
When bringing up a game (which appears in a sub-window of Firefox),
some of the initial sounds, such as the game's splash jingle, will play,
as well as a few (3-4) simple/short sound effects (200-500 ms apiece?),
then no sounds thereafter until game is terminated by clicking the 'x'
in the upper right-hand corner of the subwindow.
When playing a sample audio clip for system events, I hear a light hiss,
followed by a quiet click well after (2-3 seconds) after the expected
sound has been played, as if the sound clip was expected to be a lot
longer than it really is.
Sounds should continue to play throughout the session - they do under
Windows XP as well as SuSE 10.2. I should be able to click on various
sample sound clicks while configuring my desktop preferences and not have
to wait for the buffer/queue (or whatever) to fully drain on each sound.
Additional info: Hardware: HP dv9000z laptop, AMD Turion 64x2, 2GB memory,
F9Beta installed on Western Digital MyBook USB drive, NVIDIA MCP51 sound
system, Alsa seems to be automatically configured in (was getting some
error balloons the other day saying it had failed and was defaulting back
to PulseAudio, but that error message has disappeared as mysteriously as
it appeared last week).
My personal gut feel is that there is a buffering problem between apps and
PulseAudio and that PA's work queue is overflowing - i.e., it can't gracefully
handle multiple events and/or the hardware is not reacting properly.
This morning's updates somehow clobbered my firefox plugins
(/usr/lib64/firefox-3.0b5/plugins directory disappeared !). I did a mkdir, then
in plugins added a symbolic link, ln -s /usr/lib64/gcj-4.3.0/libgcjwebplugin.so
and restarted Firefox, which then reported the usual suspects in 'about:plugins'.
Behaviour of this set-up is basically the same as reported initially - there was
no improvement due to today's new bits.
The last few days have seen a balloon appearing telling me that Alsa has failed
and that the sound system is going to its fallback of PulseAudio. This happens
regardless of Desktop (KDE vs. GNOME) and presence/absence of Firefox.
Created attachment 301870 [details]
Output of pulseaudio -vv when trying to play pogo.com java game
Note that I'm running 2.6.25-0.201.rc8.git4.fc9.x86_64 kernel instead of
today's 205 kernel because the latter eats my cursor, apparently. Also, this
output was created under a GNOME desktop, but my complaint about stuff not
playing applies to both KDE and GNOME, and I'll be happy to repeat the
pulseaudio -vv under KDE upon request.
Problem appears to persist under Fedora Preview, up through and including this
morning's (USA EDT) updates. I note that similar problems are being discussed in
the Ubuntu fora, https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/198453
and I'm speculating that there is an integration problem with ALSA and/or
intel_hda (even though I'm running NVIDIA MCP51 hardware).
Slight improvement noted with the F9 Release version today, as long as I was very
patient and waited for the buffers to drain. But longer-length sound effects
still cut out, and there's nothing I can do to avoid it.
Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
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Although we aim to fix as many bugs as possible during every release's
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The process we are following is described here:
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is
no longer maintained, which means that it will not receive any further
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