[Intrepid regression] Lagging sound with OSS

Bug #262806 reported by Mads Peter Rommedahl
6
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

After upgrading to Intrepid Alpha 4, I have very lagging sound, which sometimes disappears altogether.

The problem appears (to me) to be CPU hogging or something like that - i.e. I can sit and watch a movie in Totem fine, but the moment I decide to start Firefox, or receive a message in pidgin, while the movie is playing, the sound disappears. I then have to wait for the drive activity to die down before I can continue with the movie/sound.

In other words: Next to nothing must run while Totem/OSS is running in order for the sound to work.
Annoying indeed.

Since I am unsure whether this is a bug in the kernel, in OSS or somewhere else, I'll report it here.

Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :
Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :
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Mads Peter Rommedahl (lhademmor) wrote :

Okay, I noticed that this was because OSS failed at relinking the modules to the new 2.6.27 kernel.
Then I simply went and reinstalled OSS, and all seems well now. Let's hope it lasts :)

Changed in linux:
status: New → Invalid
Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :

...and it didn't. After a reboot today I've discovered that the sound levels are completely garbled in Intrepid.
The ossxmix mixer has the volume slide turned all the way up, but still only produces the same sound levels as they did when they were turned halfway up in hardy.
This (I guess) leads to that when I play music in Banshee, I get a lot of noise in the music (the kind of noise that you usually get when you try to push the volume levels beyond their borders) - however, I had no such problem in Hardy, so this is definitely a regression.

Reopening.

Changed in linux:
status: Invalid → New
Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

Hi Mads,

Can you comment if this was an issue with the 2.6.26 kernel offered previously in Intrepid? Thanks.

Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :

Hi Leann

Unfortunately, due to bug 263974 I am currently unable to test the 2.6.26 kernels on Intrepid. I hope that one gets fixed soon.

But also, it's my suspicion that this is either GStreamer or Banshee's fault (though that doesn't explain why this only happened after upgrading to Intrepid...)

Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :

Ok, I'm back on Intrepid.
To say that upgrading to intrepid is 'breaking' OSS is not entirely true. The problem appears to be CPU hogging or something like that - i.e. I can sit and watch a movie in Totem fine, but the moment I decide to start Firefox while the movie is playing, the sound disappears. I then have to wait for the drive activity to die down before I can continue with the movie/sound.

In other words: Next to nothing must run while Totem/OSS is running in order for the sound to work.
Annoying indeed.

description: updated
Revision history for this message
t_robert (amoresunaramera) wrote :

i have a similar problem. but in my case, there is absolutely no sound. the sound icon is has a red x mark on it. and clicking it opens a dialogue box saying that gstreamer plug-in may not be properly configured or missing (something like that). right-clicking to open volume control, opens the following: No volume control GStreamer plugins and/or devices found.

Revision history for this message
kernel-janitor (kernel-janitor) wrote :

Hi Mads,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 262806

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: kernel-sound
tags: added: needs-kernel-logs
tags: added: needs-upstream-testing
tags: added: kj-triage
Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Mads Peter Rommedahl (lhademmor) wrote :

I'm on Karmic with ALSA now, so this doesn't matter to me anymore - but even before that OSS worked beautifully in Jaunty.
Closing.

Changed in linux (Ubuntu):
status: Incomplete → Invalid
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