This bug report was marked as Incomplete and has not had any updated
comments for quite some time. As a result this bug is being closed.
Please reopen if this is still an issue in the current Ubuntu
development release http://cdimage.ubuntu.com/daily-live/current/ .
Also, please be sure to
I removed the 2.6.36 kernel, reverted to 2.6.35-22 and installed the recent
update to the 2.6.35 kernel:
Linux [my_hostname] 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 10:18:49 UTC
2010 i686 GNU/Linux.
This kernel update, and/or perhaps some other recent Meerkat updates,
has resolved the audio
I should clarify - audio playback quality now seems to be fine. I am
still getting the kslowdxxx processes every 10 seconds or so, but they
don't appear to significantly stall the system, or affect audio
playback.
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I can confirm the fix proposed in #20: After installing the Natty
kernel 2.6.36-020636-generic #201010210905, the stottering is gone.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
https://bugs.launchpad.net/bugs/658747
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I am also affected, running 10.10 on a Thinkpad X40, also with i855GM.
Sound playback is interrupted every 5-10 seconds and the mouse cursor
freezes for a moment. This is really horrible when you try to make a
softphone call.
I tried Glasen's PPA back in 10.04, but it did not resolve the various
I fixed it following
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/662946/comments/20
https://wiki.ubuntu.com/X/Bugs/Mavericki8xxStatus
Manually enabling the Intel driver
To enable the Intel driver you need to create a file called
/etc/X11/xorg.conf containing the
same here: HP/compaq NX9020
no problem until now (ubuntu/xubuntu 10.10)
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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I was able to work around this by installing the Natty kernel
2.6.36-020636-generic #201010210905. This appears to have eliminated
the kslowdxxx problem and the audio hiccupping. [Off-topic: It has also
broken the ndiswrapper wireless functionality, but resolved a problem
where the normal b43
I have the same problem with the audio in Ubuntu 10.10..I didn't try the
audio with Ubuntu 10.04 because I had the Intel i8 video card and it was
discouraged to install Lucid if the computer had that video card..so I
tried Ubuntu 10.10 from the alpha3 and the audio worked until a month
ago..don't
I have an Hp Pavilion dv1055ea with Ubuntu 10.10..the problem appears
every 20 seconds or so, when playing music, videos, youtube, banshee,
rythmbox, totem, mplayer..the kernel is 2.6.35.22.23
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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Same as Reidi - no issues at all under 9.10.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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For the record, there were no sound problems using Ubuntu 10.04.
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Same as Reidi - no issues at all under 10.04
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Daniel, it's still present in the latest from
https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules
same sound card on a ThinkPad X40. With 10.04 audio was fine, with
10.10 I get lots of stutter making listening to music quite frustrating.
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[ICH4 - Intel 82801DB-ICH4] Playback
for the record, I have the exact same issue too. I've tried the
suggested fixes above and they did not work.
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doing some other googles, and looking at reidi's comment on kslowdXXX,
it appears that may be the culprit. Others seem to have other OS issues
(mouse lag, etc) when kslowdXXX kicks in and spikes.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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Adding the tsched=0 made the situation noticeably worse. Instead of a
single stutter I get a rapid 4 or 5 stutters. Change reverted.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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- Applying the latest linux-alsa-driver-modules daily build
2.6.35.22.201010121600 made no difference whatsoever.
- Applying the latest updates recommended by Update Manager, including
kernel 2.6.35-22 #34 and a bunch of pulseaudio updates made no
difference whatsoever.
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[ICH4 - Intel
This looks like a kernel (external to the sound driver) regression,
moving as appropriate.
** Package changed: alsa-driver (Ubuntu) = linux (Ubuntu)
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[ICH4 - Intel 82801DB-ICH4] Playback problem
https://bugs.launchpad.net/bugs/658747
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Thanks. Can you reproduce this symptom using 10.04's kernel? If so,
can you use the daily build of linux-alsa-driver-modules from the
ubuntu-audio-dev ppa and reproduce it (also using 10.10's kernel)?
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[ICH4 - Intel 82801DB-ICH4] Playback problem
https://bugs.launchpad.net/bugs/658747
You
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/658747/+attachment/1686295/+files/AlsaDevices.txt
** Attachment added: AplayDevices.txt
https://bugs.launchpad.net/bugs/658747/+attachment/1686296/+files/AplayDevices.txt
** Attachment added: ArecordDevices.txt
** Attachment added: apport-bug --file-bug from a rare system start when there
is NOT a sound problem.
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/658747/+attachment/1686307/+files/apport_good.txt
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[ICH4 - Intel 82801DB-ICH4] Playback problem
Maybe kslowd is a red herring. At any rate the processes kslowd000 and
kslowd001 are persistent and alternately rise to the top of top every
10 seconds or so whether a sound application is running or not.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
https://bugs.launchpad.net/bugs/658747
You
Those are kernel threads; see dmesg for more information.
You might need tsched=0 in /etc/pulse/default.pa.
** Changed in: alsa-driver (Ubuntu)
Status: New = Incomplete
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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Editing default.pa as below did not solve the problem.
load-module module-udev-detect tsched=0 Did NOT work.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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Please revert that change and use the latest linux-alsa-driver-modules
daily build.
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[ICH4 - Intel 82801DB-ICH4] Playback problem
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