Red Hat Bugzilla – Bug 496805
Loud clicks before and after a sound is played
Last modified: 2010-06-28 08:08:27 EDT
Description of problem:
After logging into Gnome, I hear loud clicks on the speakers, as if the audio hardware is repeatedly powered on and off. It's always a loud CLICK, then the sound to be played, then after a few seconds another loud CLICK.
The clicks are quite loud. They could damage the speakers, and are also very annoying. Setting the volume to mute will make the click noise rather quiet, but on the other hand, then there is no sound. :)
It's a ThinkPad R61 with Intel chipset, connected to active PC speakers.
Version-Release number of selected component (if applicable):
Fedora 11 beta Snapshot 1 x86_64 Gnome Live CD
Steps to Reproduce:
1. Boot the F11 Snapshot 1 Live CD, log into Gnome
2. Hear the first click before and after the Gnome welcome sound is played
3. Hear further clicks when other Gnome sounds are played, or music is played, etc...
You constantly hear CLICK-sound-CLICK.
Only the sound is played, without clicking.
I am not sure if pulseaudio is the right component for this bug. I chose it because I presume it's the topmost component of the audio stack.
These clicks are most likely related to putting the sound chip into powersave mode. On my T61p I have the same symptoms. Try setting power_save=0 for the module snd_hda_intel (or look for the option within the module used by your soundcard).
PA closes the device after a few seconds of idle to save power. If this causes clicks, this is a driver issue.
REassigning to kernel.
Richard, please include the output fo alsa-info.sh --no-upload so that we can identify which driver this is.
I have installed F11 prerelease with all the updates now, and could not reproduce those clicks any more. Bug closed RAWHIDE, I hope this was correct.
I am reopening this bug. The issue occurs again on F11 final with kernel-184.108.40.206-217.2.16.fc11.x86_64, after the updates of September 7th:
Sep 07 20:07:39 Updated: pulseaudio-libs-0.9.15-17.fc11.x86_64
Sep 07 20:07:43 Updated: pulseaudio-0.9.15-17.fc11.x86_64
Sep 07 20:07:45 Updated: ibus-libs-220.127.116.1190829-1.fc11.x86_64
Sep 07 20:07:46 Updated: pulseaudio-module-bluetooth-0.9.15-17.fc11.x86_64
Sep 07 20:07:48 Updated: pulseaudio-libs-glib2-0.9.15-17.fc11.x86_64
Sep 07 20:07:49 Updated: pulseaudio-utils-0.9.15-17.fc11.x86_64
Sep 07 20:07:50 Updated: openldap-2.4.15-5.fc11.x86_64
Sep 07 20:07:54 Updated: blas-3.2.1-3.fc11.x86_64
Sep 07 20:07:59 Updated: gstreamer-plugins-base-0.10.24-1.fc11.x86_64
Sep 07 20:08:00 Updated: openldap-2.4.15-5.fc11.i586
Sep 07 20:08:02 Updated: pulseaudio-libs-0.9.15-17.fc11.i586
Sep 07 20:08:18 Updated: selinux-policy-3.6.12-81.fc11.noarch
Sep 07 20:08:19 Updated: kernel-firmware-18.104.22.168-43.fc11.noarch
Sep 07 20:08:22 Updated: pulseaudio-module-x11-0.9.15-17.fc11.x86_64
Sep 07 20:08:23 Updated: pulseaudio-module-gconf-0.9.15-17.fc11.x86_64
Sep 07 20:08:41 Updated: selinux-policy-targeted-3.6.12-81.fc11.noarch
Sep 07 20:08:47 Updated: kernel-headers-22.214.171.124-43.fc11.x86_64
Sep 07 20:09:11 Installed: kernel-devel-126.96.36.199-43.fc11.x86_64
Sep 07 20:09:35 Installed: kernel-188.8.131.52-43.fc11.x86_64
Sep 07 20:09:37 Updated: ibus-gtk-184.108.40.20690829-1.fc11.x86_64
Sep 07 20:09:58 Updated: ibus-220.127.116.1190829-1.fc11.x86_64
Created attachment 360291 [details]
output of alsa-info.sh
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